case study class 7 science reproduction in plants

Gurukul of Excellence

Classes for Physics, Chemistry and Mathematics by IITians

Join our Telegram Channel for Free PDF Download

Case Study Questions for Class 7 Science Chapter 12 Reproduction in Plants

Last modified on: 1 year ago
Reading Time: 6 Minutes

[Download] Case Study Questions for Class 7 Science Chapter 12 Reproduction in Plants

Here we are providing case study or passage-based questions for class 7 science chapter 12 Reproduction in Plants.

Case Study/Passage Based Questions

Cell which is produced after fusion of gametes is called a zygote. Fusion of male and female gametes (to form a zygote) is called fertilization. Zygote develops into an embryo. 1. Zygote formation occurs in: (a) asexual reproduction (b) sexual reproduction (c) both asexual and sexual reproduction (d) all the above are correct 2. Cell which is produced after fusion of male gametes and female gametes is called: (a) zygote (b) fertilization (c) embryo (d) None of these 3. The part of flower which produce male gametes is: (a) anther (b) stamen (c) filament (d) None of these

What is case study question for class 7 science.

Case study or passage-based questions in class 7 Science typically require students to read a given scenario or passage and answer questions based on the information provided. These questions assess students’ comprehension, analytical thinking, and application of scientific concepts.

Best Ways to Prepare for Case Study Questions

To develop a strong command on class 6 Science case study questions, you can follow these steps:

Read the textbook and study materials: Familiarize yourself with the concepts and topics covered in your class 6 Science curriculum. Read the textbook thoroughly and take notes on important information.
Practice analyzing case studies: Look for case studies or passages related to class 6 Science topics. Analyze the given information, identify key details, and understand the context of the situation.
Develop comprehension skills: Focus on improving your reading comprehension skills. Practice reading passages or articles and try to summarize the main points or extract relevant information. Pay attention to details, vocabulary, and the overall structure of the passage.
Understand scientific concepts: Ensure that you have a solid understanding of the scientific concepts discussed in class. Review the fundamental principles and theories related to each topic.
Make connections: Try to connect the information provided in the case study to the concepts you have learned in class. Identify any cause-effect relationships, patterns, or relevant scientific principles that apply to the situation.
Practice critical thinking: Develop your critical thinking skills by analyzing and evaluating the information given in the case study. Think logically, consider multiple perspectives, and draw conclusions based on the evidence provided.
Solve practice questions: Look for practice questions or sample case study questions specifically designed for class 6 Science. Solve these questions to apply your knowledge, practice your analytical skills, and familiarize yourself with the format of case study questions.
Seek clarification: If you come across any challenging concepts or have doubts, don’t hesitate to ask your teacher for clarification. Understanding the underlying principles will help you tackle case study questions effectively.

Download Books – Exam Special

Sample Papers for CBSE 2025 Exams

Sample Question Papers for CBSE Class 8 All Subjects (for 2025 Exams)
Sample Question Papers for CBSE Class 9 All Subjects (for 2025 Exams)
Sample Question Papers for CBSE Class 10 All Subjects (for 2025 Exams)
Sample Question Papers for CBSE Class 12 All Subjects (for 2025 Exams)

CBSE Class 10 Most Downloaded Books

CBSE Important Numerical Problems Class 10 Physics Board Exams
CBSE Practical Based Questions for Class 10 Science Board Exams
CBSE Important Diagram Based Questions Class 10 Physics Board Exams
CBSE Most Repeated Questions for Class 10 Science Board Exams

CBSE Class 12 Most Downloaded Books

CBSE Important Diagrams & Graphs Asked in Board Exams Class 12 Physics
CBSE Important Numericals Class 12 Physics Board Exams
CBSE Important Laws & Principles Class 12 Physics Board Exams
CBSE Important Definitions Class 12 Physics Board Exams
Master Organic Conversions CBSE Class 12 Chemistry Board Exams
CBSE Class 12 Physics Chapterwise Important Questions

CBSE Class 8 Most Downloaded Books

Worksheets for CBSE Class 8 Maths – Chapterwise

ICSE Class 10

ICSE Important Numericals Class 10 Physics BOARD Exams (215 Numericals)
ICSE Important Figure Based Questions Class 10 Physics BOARD Exams (230 Questions)
ICSE Mole Concept and Stoichiometry Numericals Class 10 Chemistry (65 Numericals)
ICSE Reasoning Based Questions Class 10 Chemistry BOARD Exams (150 Qs)
ICSE Important Functions and Locations Based Questions Class 10 Biology
ICSE Reasoning Based Questions Class 10 Biology BOARD Exams (100 Qs)
ICSE Reasoning Based Questions Class 10 Geography BOARD Exams
ICSE Revision Notes for Class 10 Chemistry BOARD Exams
ICSE Revision Notes for Class 10 Physics BOARD Exams

ICSE Class 9

ICSE Important Figure Based Questions Class 9 Physics Exams
ICSE Important Numerical Problems for Class 9 Physics Exams
ICSE Reasoning Based Questions Class 9 Geography BOARD Exams (150 Qs)

CBSE Chapter-Wise Test Papers

CBSE Class 9 Science Chapterwise Test Papers
CBSE Class 10 Science Chapterwise Test Papers
CBSE Class 10 Maths Chapterwise Test Papers
CBSE Class 10 Social Science Chapterwise Test Papers
CBSE Class 12 Physics Chapterwise Test Papers
CBSE Class 12 Chemistry Chapterwise Test papers

✨ Join our Online NEET Test Series for 499/- Only for 1 Year

Discover more from Gurukul of Excellence

Subscribe now to keep reading and get access to the full archive.

Type your email…

A to Z Classes

Cbse, ncert and icse solution online, class 7 science case study question, case study question class 7 science (cbse / ncert board).

Class 7 Science Case Study Question and Answer: CBSE / NCERT Board Class 7 Science Case Study Question prepared by expert Science Teacher. Students can learn Case Based Question / Paragraph Type Question for NCERT Class 7 Science.

There are total 18 chapter Nutrition in Plants, Nutrition in Animals, Fibre to Fabric, Heat, Acids, Bases and Salts, Physical and Chemical Changes, Weather, Climate and Adaptations of Animals to Climate, Winds, Storms and Cyclones, Soil, Respiration in Organisms, Transportation in Animals and Plants, Reproduction in Plants, Motion and Time, Electric Current and Its Effects, Light, Water: A Precious Resource, Forests: Our Lifeline, Wastewater Story

For any problem during learning any Case or any doubts please comment us. We are always ready to help You.

CBSE Class 7 Science Case Study Question

Chapter 1 Nutrition in Plants Case Study Question
Chapter 2 Nutrition in Animals Case Study Question
Chapter 3 Fibre to Fabric Case Study Question
Chapter 4 Heat Case Study Question
Chapter 5 Acids, Bases and Salts Case Study Question
Chapter 6 Physical and Chemical Changes Case Study Question
Chapter 7 Weather, Climate and Adaptations of Animals to Climate Case Study Question
Chapter 8 Winds, Storms and Cyclones Case Study Question
Chapter 9 Soil Case Study Question
Chapter 10 Respiration in Organisms Case Study Question
Chapter 11 Transportation in Animals and Plants Case Study Question
Chapter 12 Reproduction in Plants Case Study Question
Chapter 13 Motion and Time Case Study Question
Chapter 14 Electric Current and Its Effects
Chapter 15 Light
Chapter 16 Water: A Precious Resource
Chapter 17 Forests: Our Lifeline
Chapter 18 Wastewater Story

What is Case Study Question?

Ans. At case Study there will one paragraph and on the basis of that concept some question will made. Students have to solve that question.

How many marks will have at case based question?

Most of time 5 questions will made from each case. There will 1 or 2 marks for each question.

Important links:

Lakhmir Singh Class 7 Solution
NCERT Class 7 Math Solution

CBSE Class Notes Online – Classnotes123

CBSE Class Notes, Worksheets, Question Answers, Diagrams , Definitions , Diffrence between , Maths Concepts, Science Facts Online – Classnotes123

Class 7- Chapter 8 – Reproduction in Plants – 6 Worksheets with Answer Key

Table of Contents

Reproduction in Plants- Worksheets

These worksheets are related to the chapter on “Reproduction in Plants.” The chapter covers different methods plants use to reproduce, including both asexual and sexual reproduction. The worksheets provided include both solved and unsolved versions to aid in learning.

Key concepts covered in the chapter and explored through these worksheets include-

Asexual Reproduction- Understanding how plants can reproduce without seeds, through methods like budding, fragmentation, and vegetative propagation.
Sexual Reproduction- Learning about the process involving male and female gametes, pollination, fertilisation, and seed formation.
Seed Dispersal- Studying the different ways seeds spread to new locations.

The solved worksheets offer solutions and methods to approach these topics, while the unsolved worksheets allow for practice and self-assessment.

Also Check – Rapid Revision – Class 7 Science- Chapter 12 – Reproduction in Plants

Worksheet 1 – Chapter 8 – Reproduction in Plants – Student Worksheet (Unsolved)

Fill in the blanks-

(a) In plants, __________ reproduction involves the fusion of male and female gametes.

(b) Asexual reproduction in plants can occur through __________, __________, and __________.

(d) The female reproductive part of a flower is the __________, composed of __________, __________, and __________.

(e) __________ is the process where pollen grains are transferred from the anther to the stigma of a flower.

True or False-

(a) Seed dispersal is essential for preventing overcrowding around parent plants. (T/F)

(b) All plants reproduce sexually. (T/F)

(d) Vegetative propagation always requires seeds. (T/F)

Match the following reproductive methods with their respective examples-

(a) Budding

(b) Fragmentation

(d) Vegetative Propagation

(i) Bryophyllum (leaf propagation)

(iii) Bread Mold

(iv) Spirogyra

Describe the process and importance of pollination in plants.

Explain the role of fruits in the life cycle of a flowering plant.

Discuss the various methods by which seeds can be dispersed.

Describe the process of germination and the factors that affect it.

How does asexual reproduction in plants differ from sexual reproduction?

Explain the structure and function of different parts of a flower.

Discuss the advantages and disadvantages of vegetative propagation.

Also Check – Class 7 – Science- Chapter 12 – Reproduction in Plants question answer (Short Question Answer)

Worksheet 1 – Chapter 8 – Reproduction in Plants – Solved Worksheet with Answer

(a) In plants, sexual reproduction involves the fusion of male and female gametes.
(b) Asexual reproduction in plants can occur through budding, fragmentation, and spore formation.
(c) The male reproductive part of a flower is the stamen, consisting of anther and filament.
(d) The female reproductive part of a flower is the carpel or pistil, composed of stigma, style, and ovary.
(e) Pollination is the process where pollen grains are transferred from the anther to the stigma of a flower.
(a) Seed dispersal is essential for preventing overcrowding around parent plants. (T)
(b) All plants reproduce sexually. (F) – Some plants reproduce asexually.
(c) Fertilisation in plants occurs when the male gamete fuses with the egg cell in the ovule. (T)
(d) Vegetative propagation always requires seeds. (F) – It does not involve seeds.
(a) Budding – (ii) Yeast
(b) Fragmentation – (iv) Spirogyra
(c) Spore Formation – (iii) Bread Mold
(d) Vegetative Propagation – (i) Bryophyllum (leaf propagation)
Pollination is the transfer of pollen from the anther of a flower to the stigma. It’s crucial for sexual reproduction in plants, as it allows for fertilisation, leading to the formation of seeds and fruits, which helps in the continuation of plant species.
Fruits develop from the ovary after fertilisation. They protect the developing seeds and aid in their dispersal, either through natural agents (wind, water, animals) or human activities, ensuring the spread and survival of the plant species.
Seeds can be dispersed by various means, including wind, water, animals, and self-dispersal mechanisms (e.g., exploding pods). These methods help in spreading seeds to new locations for germination and growth.
Germination is the process by which a seed develops into a new plant. Factors affecting germination include water, temperature, light, and oxygen. Water activates enzymes, temperature affects metabolic rates, and light can trigger or inhibit germination in some seeds.
Asexual reproduction involves a single parent and produces genetically identical offspring. It does not involve gamete formation or fertilisation. In contrast, sexual reproduction involves two parents and the fusion of gametes, producing genetically diverse offspring.
A flower typically consists of sepals (protect the flower bud), petals (attract pollinators), stamens (male reproductive part; produce pollen), and carpels or pistils (female reproductive part; receive pollen and house ovules).
Advantages- Faster than seed reproduction, produces identical offspring (maintains desirable traits), can propagate plants that do not produce viable seeds. Disadvantages- Lack of genetic diversity (susceptible to diseases), spread of diseases from parent to offspring, and limited dispersal range.

Also Check – Class 7 Science- Chapter 12 – Reproduction in Plants- (Complete Notes)

Worksheet 2 – Chapter 8 – Reproduction in Plants – Student Worksheet (Unsolved)

Multiple Choice Questions (MCQs)-

(a) Which part of the plant is involved in asexual reproduction?

(i) Flower (ii) Leaf (iii) Root (iv) Stem

(b) What is the primary purpose of flowers in plants?

(i) Photosynthesis (ii) Support (iii) Reproduction (iv) Protection

(i) Sexual reproduction (ii) Asexual reproduction (iii) Germination (iv) Pollination

Identify whether the following statements are related to Sexual or Asexual reproduction in plants-

(a) Production of new plants from leaves.

(b) Formation of seeds after fertilisation.

(d) Formation of fruit after pollination.

Match the following plant parts with their functions-

(i) Contains male gametes.

(ii) Site of pollen reception.

(iii) Develops into a fruit.

(iv) Produces pollen grains.

Describe the process and significance of seed dispersal in plants.

Explain how vegetative propagation is different from seed-based reproduction.

Discuss the role of pollinators in the reproduction of flowering plants.

How does the environment influence the germination of seeds?

What are the benefits and limitations of asexual reproduction in plants?

Explain the structure of a typical flower and its role in plant reproduction.

Describe the stages of development from a fertilised ovule to a mature seed.

Also Check – Class 7 – Science- Chapter 12 – Reproduction in Plants question answer (Long Question Answer)

Worksheet 2 – Chapter 8 – Reproduction in Plants – Solved Worksheet with Answer

Answer- (ii) Leaf

Answer- (iii) Reproduction

Answer- (ii) Asexual reproduction

Answer- Asexual reproduction

Answer- Sexual reproduction

(a) Anther – (iv) Produces pollen grains

(b) Stigma – (ii) Site of pollen reception

(d) Pollen – (i) Contains male gametes

Seed dispersal is the process by which seeds are spread away from the parent plant to reduce competition for resources. It occurs through various methods like wind, water, animals, and self-dispersion, ensuring the spread of the species and greater chances of survival and germination in new locations.

Vegetative propagation is a form of asexual reproduction where new plants grow from parts of the parent plant (like leaves, stems, roots) without seed formation. It produces genetically identical offspring and is faster than seed-based reproduction, which involves sexual reproduction and genetic variation.

Pollinators, such as bees, butterflies, and birds, play a crucial role in the sexual reproduction of flowering plants by transferring pollen from one flower to another. This leads to fertilisation and the formation of seeds and fruit, ensuring genetic diversity and the continuation of plant species.

The germination of seeds is influenced by environmental factors such as water, temperature, light, and soil quality. Adequate moisture activates enzymes, the right temperature optimises metabolic processes, light affects some seeds’ germination, and soil quality provides necessary nutrients.

Benefits- Rapid reproduction, no need for pollinators, genetic uniformity ensures preservation of traits. Limitations- Lack of genetic diversity, increased vulnerability to diseases, and environmental changes.

A typical flower consists of sepals, petals, stamens (male reproductive parts with anthers and filaments), and carpels or pistils (female reproductive parts with stigma, style, and ovary). Flowers facilitate sexual reproduction through pollination and fertilisation, leading to seed and fruit formation.

After fertilisation, the ovule develops into a seed. The zygote forms an embryo, while the ovule’s outer layers form the seed coat. The embryo matures, storing nutrients, and upon reaching maturity, the seed becomes dormant until conditions are favourable for germination.

Also Check – Chapter 12 – Reproduction in Plants–Class 7 science- Question and Answer (Solved MCQs)

Worksheet 3 – Chapter 8 – Reproduction in Plants – Student Worksheet (Unsolved)

Choose the Correct Option-

(a) Which part of the plant typically participates in vegetative propagation?

(i) Flowers (ii) Seeds (iii) Leaves (iv) Fruits

(b) What is the main function of the ovary in a flower?

(i) Produces pollen (ii) Supports the flower (iii) Contains the ovules (iv) Attracts pollinators

(i) Flowering plants (ii) Moss and ferns (iii) Cacti (iv) Fruit trees

Analyse and Categorize-

For each of the following methods, categorise whether they are examples of vegetative propagation or sexual reproduction-

(a) Formation of new plants from roots.

(b) Formation of seeds in fruits.

(d) Pollen transferring to stigma.

Match the Column-

Match the following methods of asexual reproduction with their correct examples-

(a) Cutting

(b) Grafting

(d) Spore formation

(iv) Apple trees

Elaborate the Process-

Describe the process of grafting and its significance in plant reproduction.

Explain the Concepts-

Explain how vegetative propagation benefits the growth and cultivation of certain plant species.

Discuss Environmental Impact-

How does the environment affect the process of vegetative propagation?

Advantages and Disadvantages-

List the advantages and disadvantages of asexual reproduction in plants.

Flower Anatomy-

Describe the anatomy of a flower and explain the role of each part in plant reproduction.

Seed Development-

Outline the stages in the development of a seed from fertilisation to maturation.

Practical Application-

Discuss how understanding plant reproduction is beneficial in agriculture and horticulture.

Also Check – Chapter 12 – Reproduction in Plants-–Class 7 science- Question and Answer (Fill in the Blanks)

Worksheet 3 – Chapter 8 – Reproduction in Plants – Solved Worksheet with Answer

Answer- (iii) Leaves
Answer- (iii) Contains the ovules
Answer- (ii) Moss and ferns
Category- Vegetative Propagation
Category- Sexual Reproduction
(a) Cutting – (ii) Roses
(b) Grafting – (iv) Apple trees
(c) Budding – (i) Yeast
(d) Spore formation – (iii) Moss
Grafting involves joining the tissues of two plants so they grow as one. It’s significant for combining desirable characteristics of two different plants, such as disease resistance with high yield, and for reproducing plants that don’t root well from cuttings.
Vegetative propagation benefits plants by enabling rapid and large-scale reproduction, preserving desirable traits, and bypassing the seed formation stage. It’s particularly useful in horticulture for reproducing plants with desired qualities.
Environmental factors like temperature, humidity, and soil conditions significantly affect vegetative propagation. Optimal conditions can enhance rooting and growth, while unfavourable conditions can hinder the process.
Advantages- Quick reproduction, uniformity of progeny, preservation of characteristics.
Disadvantages- Lack of genetic diversity, potential spread of diseases, reduced adaptability to environmental changes.
A flower typically includes sepals, petals, stamens (male reproductive organs with anthers and filaments), and carpels or pistils (female reproductive organs with stigma, style, and ovary). Each part plays a role in attracting pollinators, producing gametes, and facilitating fertilisation.
After fertilisation, the ovule develops into a seed. The embryo forms inside the seed, surrounded by a protective seed coat. The seed undergoes maturation and dormancy until conditions are favourable for germination.
Understanding plant reproduction is crucial in agriculture and horticulture for breeding plants with desirable traits, improving crop yields, developing disease-resistant varieties, and conserving plant biodiversity.

Also Check – Asexual Reproduction Basics – Simplified for Young Learners

Worksheet 4 – Chapter 8 – Reproduction in Plants – Student Worksheet (Unsolved)

Short Answer Questions-

(a) Describe two natural methods of vegetative propagation in plants.

(b) What role do flowers play in the sexual reproduction of plants?

(d) How does spore formation aid in the reproduction of certain plants?

Diagram-Based Questions-

(a) Draw a labelled diagram of a flower, indicating the main reproductive parts.

(b) Illustrate the process of vegetative propagation in plants using the example of a potato plant.

Comparative Analysis-

(a) Compare and contrast sexual and asexual reproduction in plants, citing examples.

(b) Discuss the differences between vegetative propagation and reproduction through spores.

Detailed Explanations-

(a) Describe the process of pollination and its significance in plant reproduction.

(b) Explain how fruits are formed in plants and their role in seed dispersal.

Critical Thinking-

(a) Why is sexual reproduction important for the genetic diversity of plant species?

(b) Discuss the advantages and disadvantages of vegetative propagation.

Application-Based Questions-

(a) How can knowledge of plant reproduction be applied in agriculture for crop improvement?

(b) Describe a scenario where vegetative propagation is preferred over sexual reproduction in commercial plant cultivation.

Also Check – NCERT Solutions for Class 7 Science Chapter 12-Reproduction in Plants

Worksheet 4 – Chapter 8 – Reproduction in Plants – Solved Worksheet with Answer

Runners- Some plants like strawberries produce horizontal stems called runners or stolons, which give rise to new plants at their tips.
Rhizomes- Plants like ginger and turmeric use underground stems called rhizomes to produce new plants.
Flowers are the reproductive structures of angiosperms (flowering plants). They contain the male (stamen) and female (carpel/pistil) reproductive organs. Flowers facilitate pollination, the transfer of pollen from anthers to stigma, leading to fertilisation and seed production.
Budding is a form of asexual reproduction where a new organism develops from an outgrowth or bud due to cell division. In plants, it is seen in yeast and some small plants. It is important for rapid and effective reproduction without the need for seeds.
Spore formation is a method of asexual reproduction where plants produce spores that can develop into new individuals. It is common in fungi, algae, and non-flowering plants like ferns. Spores are typically resistant to harsh conditions and can spread easily, aiding in survival and dispersal.
Sepals- Protect the flower before it opens.
Petals- Attract pollinators.
Stamen (Male part)- Includes anther (produces pollen) and filament.
Carpel/Pistil (Female part)- Includes stigma (receives pollen), style, and ovary (contains ovules).
Potato plants reproduce vegetatively through tubers, which are swollen ends of underground stems. Each tube has several eyes, which are buds that can grow into new plants.
Sexual reproduction involves the fusion of male and female gametes, leading to genetically diverse offspring. It typically occurs through flowers. Asexual reproduction involves a single parent and results in offspring genetically identical to the parent, common methods include runners, rhizomes, and budding.
Vegetative propagation involves the growth of new plants from vegetative parts like stems, leaves, or roots and is typical in many higher plants. Spore formation involves the production of spores capable of developing into new plants and is typical in fungi, algae, and some non-flowering plants.
Pollination is the transfer of pollen grains from the male anther to the female stigma. It can be done by wind, water, or animals. Following pollination, fertilisation can occur, leading to the development of seeds and fruit. It’s crucial for genetic diversity and survival of plant species.
Fruits develop from the fertilised ovary of a flower. They protect the developing seeds and aid in their dispersal through various mechanisms like wind, water, or animals. Fruits are also crucial for attracting animals, which eat the fruit and disperse the seeds.
Sexual reproduction combines the genetic material of two parents, leading to offspring with unique genetic combinations. This genetic diversity is crucial for adaptation, survival, and evolution of species.
Advantages include rapid reproduction, preserving desirable traits, and no need for pollinators. Disadvantages include lack of genetic diversity, potential for rapid spread of diseases, and limited adaptability to changing environments.
Understanding plant reproduction is fundamental for breeding new crop varieties with desired traits such as higher yield, disease resistance, or improved nutritional quality. It also aids in conservation and restoration efforts.
In commercial cultivation, vegetative propagation is preferred for plants that do not produce viable seeds, to replicate plants with specific traits exactly, or for rapid production. It’s widely used in horticulture for ornamental plants, as well as in the cultivation of many fruit trees and agricultural crops.

Also Check – Class 7 – Science- Chapter 12 – Reproduction in Plants -Definition and Explanation of Important Keywords

Worksheet 5 – Chapter 8 – Reproduction in Plants – Student Worksheet (Unsolved)

Define and Explain-

(a) Define sexual reproduction in plants and list two key stages in this process.

(b) What is vegetative propagation? Provide two examples of vegetative propagation in plants.

Diagram Analysis-

(a) Draw and label the parts of a typical flowering plant’s reproductive system.

(b) Sketch the process of vegetative propagation in Bryophyllum, highlighting how new plants grow from leaves.

True or False – Justify Your Answer-

(a) All plants require seeds for reproduction. (T/F)

(b) Fertilisation in plants only occurs in the presence of water. (T/F)

(a) What is the primary role of the ovary in plant reproduction?

(i) Produces pollen (ii) Produces nectar (iii) Becomes the fruit (iv) Attracts pollinators

(b) In which plant does fragmentation play a crucial role in reproduction?

(i) Mango (ii) Algae (iii) Rose (iv) Potato

Explanatory Questions-

(a) Discuss the process of pollination and its importance in plant reproduction.

(b) Describe the advantages and limitations of asexual reproduction in plants.

Case Study Analysis-

(a) Given a scenario where a plant species reproduces only through spores, explain the reproductive strategy and potential challenges it might face.

(b) Analyze how vegetative propagation is beneficial in horticulture, using specific plant examples.

Application-Based Question-

Discuss how understanding different modes of plant reproduction can aid in agricultural practices and biodiversity conservation.

Comparative Study-

Compare and contrast the reproductive strategies of flowering plants and non-flowering plants like ferns and mosses.

Worksheet 5 – Chapter 8 – Reproduction in Plants – Solved Worksheet with Answer

(a) Sexual reproduction in plants is the process where male and female gametes (pollen and ovules) fuse to form a zygote, leading to the development of a new plant. The two key stages are pollination (transfer of pollen to stigma) and fertilisation (fusion of gametes).
(b) Vegetative propagation is a type of asexual reproduction in which new plants grow from vegetative parts like leaves, stems, or roots. Examples include the production of runners in strawberries and the development of tubers in potatoes.
(c) Fragmentation in algae occurs when an organism breaks into parts, and each part grows into a new organism. It’s significant as it allows rapid reproduction and colonisation of new areas, which is crucial for survival and spread, especially in algae.
Stamen (male reproductive part)- Consists of anther and filament.
Pistil/Carpel (female reproductive part)- Consists of stigma, style, and ovary.
New plants grow from the leaf margins where notches form small buds. These buds grow into new plants when the leaf detaches and falls to the ground.
(a) All plants require seeds for reproduction. (F) – Many plants can reproduce asexually without seeds, such as those that use vegetative propagation methods like cuttings, runners, or tubers.
(b) Fertilisation in plants only occurs in the presence of water. (F) – While water is essential for some plants’ fertilisation, many plants (especially terrestrial ones) fertilise through pollination, which doesn’t necessarily require water.
Answer- (iii) Becomes the fruit – After fertilisation, the ovary develops into a fruit, enclosing the seeds.
Answer- (ii) Algae – Fragmentation is a common method of asexual reproduction in algae.
(a) Pollination- Pollination is the transfer of pollen from the male part (anther) to the female part (stigma) of a flower. It can occur via wind, water, or animal pollinators. It’s vital for sexual reproduction as it allows for fertilisation and genetic diversity.
(b) Advantages and limitations of asexual reproduction- Advantages include faster reproduction and production of numerous identical offspring. Limitations include lack of genetic diversity, which may lead to vulnerability to diseases and environmental changes.
(a) Reproduction through spores- Plants like ferns reproduce through spores, which are typically resistant and can survive in harsh conditions. Challenges include reliance on suitable conditions for germination and limited dispersal distance.
(b) Vegetative propagation in horticulture- It’s beneficial for reproducing plants with desirable traits quickly and efficiently. For example, grafting in apple trees ensures the new plants have the same qualities as the parent plant.
Understanding various modes of plant reproduction can significantly improve agricultural practices by allowing for the cultivation of desirable traits, ensuring food security, and aiding in biodiversity conservation through selective breeding and habitat restoration.
Flowering plants typically reproduce sexually through pollination and seed formation. Non-flowering plants like ferns and mosses might use spores for reproduction. While flowering plants offer genetic diversity through sexual reproduction, non-flowering plants often reproduce quickly and adaptively in various environments through spores or vegetative parts.

Worksheet 6 – Chapter 8 – Reproduction in Plants – Student Worksheet (Unsolved)

Diagram Interpretation-

(a) Draw a diagram of a flower and label its reproductive parts.

(b) Illustrate and label the process of vegetative propagation in a potato.

(a) Explain the process and importance of pollination in plants.

(b) Describe the process of seed dispersal and its significance in plant survival.

Compare and contrast vegetative propagation and sexual reproduction in plants, highlighting their main differences and advantages.

Scenario-Based Questions-

(a) Given a plant that reproduces through budding, describe the steps involved in this reproductive process.

(b) Explain how a gardener could use vegetative propagation to propagate a rare plant species.

(a) Seeds are necessary for all types of plant reproduction. (T/F)

(b) Vegetative propagation results in offspring that are genetically diverse. (T/F)

Multiple Choice Questions-

(a) Which of the following is an example of asexual reproduction in plants?

(i) Fertilisation (ii) Budding (iii) Pollination (iv) Germination

(b) Which part of the plant is primarily involved in vegetative propagation?

(i) Flowers (ii) Leaves (iii) Roots (iv) Seeds

(a) What role do fruits play in the reproductive process of flowering plants?

(b) How does fragmentation contribute to the reproduction of algae?

Discussion-Based Questions

Discuss the advantages and disadvantages of using vegetative propagation in commercial farming and horticulture.

Describe how knowledge of plant reproduction can be beneficial in genetic engineering and crop improvement.

Fill in the Blanks-

(a) In flowering plants, the male reproductive organ is called the ____, while the female reproductive organ is called the ____.

(b) The process where a single organism reproduces without the involvement of another organism is called ____ reproduction.

Worksheet 6 – Chapter 8 – Reproduction in Plants – Solved Worksheet with Answer

Stamen (Male part)- Consisting of anther (produces pollen) and filament.
Carpel/Pistil (Female part)- Consisting of stigma (receives pollen), style, and ovary (contains ovules).
Illustrate a potato with eyes (buds) from which new shoots sprout, leading to the growth of new potato plants.
Pollination is the transfer of pollen grains from the male anther to the female stigma. It’s crucial for sexual reproduction, leading to fertilisation and seed formation, ensuring the continuation and genetic diversity of plant species.
Seed dispersal is the process of spreading seeds away from the parent plant. It prevents competition for resources and allows colonisation of new areas. Methods include wind, water, animals, and self-dispersal mechanisms.
Vegetative Propagation- Involves a single parent, produces genetically identical offspring, and occurs through methods like cuttings, runners, and tubers. Advantageous for rapid and exact replication of desirable traits.
Sexual Reproduction- Involves the fusion of male and female gametes, leading to genetically diverse offspring, and usually occurs through flowers. It’s beneficial for adaptability and evolution of species.
In budding, a new organism develops from a bud on the parent plant. The bud grows and eventually detaches to form a new, genetically identical plant. Common in yeast and some small plants.
A gardener can use methods like cuttings, grafting, or layering to propagate rare plants. These methods allow for the rapid production of large numbers of plants while preserving specific traits.
(a) Seeds are necessary for all types of plant reproduction. (F) – Asexual reproduction doesn’t require seeds.
(b) Vegetative propagation results in offspring that are genetically diverse. (F) – Offspring are genetically identical to the parent.
Answer- (ii) Budding
Answer- (iii) Roots
Fruits develop from the fertilised ovary and contain seeds. They protect the developing seeds and aid in their dispersal, ensuring the spread of the species.
Fragmentation is when an algae organism breaks into parts, each of which can grow into a new organism. It allows rapid reproduction and colonisation in suitable environments.
Advantages- Rapid multiplication, uniform quality, preservation of characteristics. Disadvantages- Lack of genetic diversity, potential spread of diseases, and dependency on the parent plant’s health.
Knowledge of plant reproduction is crucial in genetic engineering for developing new plant varieties with desired traits like disease resistance or improved yield, and for crop improvement through selective breeding.
(a) In flowering plants, the male reproductive organ is called the stamen, while the female reproductive organ is called the carpel/pistil.
(b) The process where a single organism reproduces without the involvement of another organism is called asexual reproduction.

Class 7 science- chapter 5 – physical and chemical changes – chemical changes activities.

January 19, 2024 January 19, 2024

case study class 7 science reproduction in plants

Class 7 Science- Chapter 5 – Physical and Chemical Changes – Physical Changes Activities

January 19, 2024 January 27, 2024

Reversible and Irreversible Changes- A Guide for Young Learners

About Jaishree Gorane

Class 7 Science Chapter 12: Reproduction in Plants - NCERT Solutions

The parents give birth to their young ones which are similar to them is called reproduction.
Reproduction is of types. Vegetative, sexual and asexual.
Vegetative is the part of asexual reproduction.
Root, stem, leaves are the vegetative parts of the plants.
The reproduction in which only parent are involved is known as asexual reproduction.
In plants reproduction occur in flower. Flower has reproductive parts.
A small outgrowth appear on the plant is called as budding.
Asexual reproduction occur in many ways like budding, fragmentation, spare formation etc.
The reproduction in which part of the plant in divided into two is known as fragmentation.
Spares are tiny asexual reproductive bodies.
The reproduction which occur due to the formation of spares known as spare formation method of asexual reproduction.
Unisexual flowers are those in which only are reproductive part is present either male or female.
Bisexual flowers are those in which both male and female reproductive parts are present.
Stamen is the male reproductive part of the plant which contain Anther and filament.
The male and female reproductive cells are called gamete.
Male gamete is produced by pollen grain which is inside the anther.
The female gamete or the egg is formed in an ovule.
The process of fusion of male and female gamete is called fertilization.
Hypha is a long thread or branch like structure which forms the body of the fungus.
Ovule contains egg or female gametes which is the part of the ovary.
When a pollen grain lands on the stigma of a flower, it grains in a tube, this tube is called as pollen tube.
The transfer of pollen from the anther to the stigma of a flower is called pollination.
Movement or transport of seeds away from the plant by means like wind, air and water is called seed dispersal.
By the fusion of male and female gamete a cell is formed known as zygote.
After development of zygote, embryo is formed.

Download pdf of NCERT Solutions for Class Science Chapter 12 Reproduction in Plants

Download pdf of NCERT Examplar with Solutions for Class Science Chapter 12 Reproduction in Plants

Exercise 1 ( Page No. : 141 )

A flower is modified into complex shoot to carry out sexual reproduction in the higher plants. The terminal or the end part of the axis of the flower that supports all the floral appendages: sepals, petals, stamens and carpels; is known as receptacles. These four whorls of floral appendages attached on the receptacle in which the two lower whorls (calyx and corolla) are sterile; and upper two are (androecium and gynoecium) are fertile or reproductive whorls. The floral parts are explained as below:

1. Calyx: It is the outermost circle of a floral leaves are called calyx and the individual leaf segment is known as sepal, is green in colour. The function of sepals (Or calyx) is to protect the flower in its starting stages when the bud formation occurs.

2. Corolla: This is the second whorl of the floral leaves arise from the inner part to the calyx, and colourful parts of a flower are called corolla and the individual leaf of corolla is known as Petal . The petals lie inside the sepals and are generally coloured which attracts the insects (for pollination) and to protect the reproductive organs of the flower.

3. Androecium: The little stalk and the third whorl of the floral appendage that arises inner to corolla; individual appendage is stamen. Stamen is the male reproductive organ of the plant and consists of two parts: a filament and an anther. The stalk of stamen is called filament and the swollen top of stamen is called anther and it makes the pollen grains and stores them. Pollen grains appear to be yellow, powder like substance to us. Pollen grains contain the male gametes (or male sex cell) of the plant which is present inside a pollen grain is called ‘male nucleus of pollen grain’.

4. Gynoecium (or pistil): In the centre of a flower, there is a flask-shaped organ called pistil and it represents female reproductive organ of the plant. A pistil is constitutes of three parts: stigma, style and ovary. Ovary is the present on the base and is swollen part of the carpel that bears various ovules. Stigma lodges pollen grains. Style is the connection between ovary and stigma.

Pollination is the transfer of pollen grains from the anther to the stigma of the flower which can be achieved by biotic (insects, birds etc.) and abiotic (wind, water etc.) pollinating agents. On the basis of pollinating mechanism, plants can be grouped into two mating systems: self- pollinated and cross- pollinated.

The process of fusion of gametes of male and female (egg) to form the diploid zygote in the embryo sac is called fertilization.

Fertilization takes place as follows: The pollen generally germinates on the stigma. When a pollen grains falls on the stigma of the pistil then the pollen grains grows a pollen tube into downward direction through the style towards the female gametes in the ovary. A male gamete are carried to the egg by the pollen tube and enters the ovule in the ovary. The tip of pollen tube bursts out and male gametes comes out of pollen tube or gets spreads out. In ovary, the male gametes of pollen fuses with the female gamete present in ovule to form the ‘zygote’ then zygote develops into the embryo sac; this process is known as siphonogamy . Embryo is that part of a seed that develops into the new plant.

Seed dispersal takes place by various agent that is responsible for cross pollination; and this means to scatter seeds over a large area. The seeds of some of the plant disperse as seeds and some are dispersed in the form of fruits because they contain seeds inside them. There are various methods of seed dispersal that have been categorised into two main categories: Abiotic (like wind, gravity, water etc.) and Biotic (animal pollinators like insects).

Anemophily (wind pollination): It is the mode of transfer of pollen grains from anther to stigma through the agency of wind. The flowers that are wind pollinated are anemophilous. These flowers contains some adaptations like flowers are colourless, odourless and nectar-less; pollen grains are small, dry, dusty and sometimes saccate so that they can blow away easily to the long distances etc.

Hydrophily (water pollination): It is the mode of transfer of pollen grains from anther to stigma occurs through the agency water. The flowers that are water pollinated are hydrophilous flowers. These flowers contains some adaptations like flowers are small, colourless, odourless and nectar-less; pollen grains are unwettable, stigma are long and sticky etc. Dispersal by water takes place in some aquatic plants which is very rare and in some that grows near a water body. For example: Zostera, Hydrilla, Ceratophyllum etc.

Entomophily (insects pollination) : It is the animal pollinator or biotic category in which the transfer of pollen grains from anther to stigma occurs through the agency of insects. The flowers that are insect pollinated are entomophilous flowers. These flowers contains some adaptations like flowers are usually large, brightly coloured and slowly to attract insect pollinators etc. The most common insect pollinators are as follows: moths, flies, butterflies, bees, beetles etc.

Dispersal by Humans: Human beings also help in dispersal of seeds during the farming.

There are much more methods for the dispersal of seeds like Ornithophily (pollination by birds), Chiropterophily (pollination by bats) etc.

Here are the correct matches;

Column I Column II (a) Bud (iii) Yeast (b) Eyes (v) Potato (c) Fragmentation (ii) Spirogyra (d) Wings (i) Maple (e) Spores (iv) Bread mould

Budding is a process of asexual reproduction in which bud is arise from the parent body and when it mature, it get detached from the parent body and makes a new individual. Eyes (as bud) potato's vegetative part that also shows budding process. fragmentation is the asexual mode of reproduction. spirogyra is an algae which shows reproduction through this fragmentation method. Maple have seeds which have wings, which is very light weighted so that pollination is being easy or the transfer of pollen grains from anther to stigma is easy. Bread mould is the most common fungi, found in tropical and sub- tropical regions. Spores are asexual reproductive bodies, are light in weight and covered by hard protective covering which protects them from unfavourable condition like high temperature and low humidity.

(a); (iv) Flower Flowers are the reproductive part of a plant that contains Stamens and pistils which are the male and the female reproductive part of a plant respectively.

(b); (i) Fertilization The process of fusion of gametes of male and female (egg) to form the diploid zygote in the embryo sac is called fertilization.

(c); (iv) Fruit Ovary contains ovules that develop into seeds after the fertilization process. After that the zygote differentiates to form an embryo sac inside the ovule. The ovary matures to turn into the fruit which can either be fleshy or dry, in which the seeds are embedded in them. A fruit is mainly formed as the result of cell division, expansion and differentiation in the ovary; or the results of stimuli received from pollination as well as from the seeds that are developing.

(d); (ii) Bread mould Spore is a unit of reproduction in plants which may also be used for dispersal as well as for survival in unfavourable conditions spore- producing plants include ferns, mushroom, liverworts, hornworts and mosses etc.

(e); (ii) Leaves Bryophyllum is a group of plant species of the family Crassulaceae and can reproduce by its leaves, i.e. reproduces asexually.

Key Features of NCERT Class 7 Science Chapter 'Reproduction in Plants' question answers :

All chapter question answers with detailed explanations.
Simple language for easy comprehension.
Aligned with the latest NCERT guidelines.
Perfect for exam preparation and revision.

NCERT Solutions

NCERT Solutions for Class 12
NCERT Solutions for Class 11
NCERT Solutions for Class 10
NCERT Solutions for Class 9
NCERT Solutions for Class 8
NCERT Solutions for Class 7
NCERT Solutions for Class 6

Reproduction in Plants Important Questions Class 7 Science Chapter 12

Reproduction in Plants Class 7 Science Chapter 4 Important Questions and Answers are provided here. We prepared these extra questions based on the latest NCERT Class 7 Science Book. These important questions will help you to properly understand a particular concept of the chapter. Practicing class 7 important questions before the exam will help you to get excellent marks in the exam.

Class 7 Science Chapter 12 Reproduction in Plants Important Questions

Very short answer type question.

1: What is unisexual flower?

Answer: A flower may have either male or female reproductive parts. Such a flower is called unisexual flowers.

2: The fusion of male and female gametes is termed as _____________.

Answer: Fertilisation

3: Name the different modes of asexual reproduction.

Answer: There are different methods by which plants reproduce asexually. They are vegetative propagation, budding, fragmentation and spore formation

4: Modes of reproduction evolve only one parent is called unisexual reproduction. True/ False

Answer: True

5: Name vegetative parts of plants.

Answer: Root, stem and leaves.

6: Name the reproductive organ of a flowering plant.

Answer: Flower

7: State the two types of reproduction in plants.

Answer: Asexual and sexual.

8: What happens in sexual reproduction?

Answer: In sexual reproduction, the male and the female gametes fuse to form seeds that eventually develop into new plants.

9: The seeds are formed inside the______________.

Answer: Fruits

10: In asexual reproduction, a new plant is grown from any part of a plant involving the seeds. True/ False

Answer: False

11: What is a node?

Answer: A node is a part of the stem from where a leaf grows.

12: ____________ Plant has buds on the edges of its leaves.

Answer: Bryophyllum

13: What kind of roots is called tubers?

Answer: Roots that store food are known as tubers.

14: What kind of roots are the food storage tanks for the plants?

Answer: Tubers

15: Yeast reproduces by a process called ____________.

Answer: Budding

16: Algae, the simplest green plants, reproduce by an asexual method known as ___________.

Answer: Fragmentation

17: What is a mould?

Answer: Mould is a type of fungus that grows on moist organic surfaces like leather shoes and moist walls.

18: How does a mould reproduce?

Answer: By the means of spores.

19: The anther of flower contains pollen sacs that produce _____________.

Answer: Pollen grains

20: Name the male reproductive unit of the flower.

Answer: Stemen.

21: Bisexual flowers contain both the stamens and the pistil. True/ False

22: Give examples of bisexual flower.

Answer: Mustard and rose.

23: Give examples of unisexual flower.

Answer: Cucumber, maize and watermelon.

24: How Pollen grains transfer from one flower to another?

Answer: By pollinating agents like wind, water and animals.

25: What is fertilization?

Answer: Fusion of the male and female gametes is called fertilisation.

26: Name the cell formed as product of fertilization.

Answer: Zygote

27: What is the other name for ovary?

Answer: Carpel

28: The stamen is male reproductive part or female reproductive part?

Answer: Male reproductive part.

29: Female gamete is formed in a ______________.

Answer: Ovule

30: Give examples of some seeds that are dispersed by animals.

Answer: Xanthium and Urena

31: Give examples of a seeds that is dispersed by water.

Answer: Coconut

32: _____________ is the female reproductive part of flower.

Answer: Pistil

33: Give examples of plants that reproduce by means of spores.

Answer: Moss and ferns.

Short Answer Type Questions

1: Why reproduction is an essential life process?

Answer: Reproduction is essential for continuation of the species from generation to generation.

2: What do you mean by vegetative propagation? Explain with example.

Answer: Vegetative propagation is the ability of plants to reproduce by using vegetative parts like roots, stems and leaves. example: Yeast, Hydra, Bryophyllum reproduce by budding, algae and fungi reproduce by spores

3: What is sexual reproduction? Explain with example.

Answer: Sexual reproduction is the process in which two components male and female are involved to produce offspring of their own kind. The flower is a reproductive organ of a flowering plant.

4: Why are there so many varieties of fruits?

Answer: Fruits develop by many ways so there are many varieties of fruits. For example, some fruits develop without the act of fertilization. Such fruits are called arthenocarpic fruits. E.g. seedless grapes, guava, mango etc.

4: Explain different parts of a flower?

Answer: Following are the parts of flowers: Sepal: Green leafy part of flower that protect flower in bud condition. Petal: Coloured leafy part of flower that attract insect for pollination Stamen: The male parts of flower that contain pollen grain Pistil: The female parts of flower that contain ovary at bottom

5: Explain vegetative propagation.

Answer: It is a type of asexual reproduction in which new plants are produced from roots, stems, leaves and buds. Since reproduction is through the vegetative parts of the plant, it is known as vegetative propagation. The plants like rose or champa can be propagated through Vegetative propagation.

6: How is zygote formed in plants?

Answer: When male gamete present in pollen grain moves into ovules and fuse with female egg cell inside ovules and zygote is formed .This process is called fertilization.

7: How does Differentiate between self-pollination and cross-pollination.

Answer: After pollination, pollen grain germinates on the stigma and moves through style to reach into ovules and fuse with female gamete, thus fertilization occurs. In side ovary, the ovule develops into seed. As seed forms, the ovary increases in size and became fruit.

8: Explain flower of a plant.

9: How does fertilization occur in flower? Where and how are seeds formed in plants?

Answer: In asexual reproduction plants can give rise to new plants without seeds, whereas in sexual reproduction, new plants are obtained from seeds.

10: Explain reproduction in plants by fragmentation.

Answer: Pollination is of two types, self-pollination and cross-pollination. In self-pollination, pollen grains are transferred from the anther to the stigma of the same flower. In cross-pollination, pollen grains are transferred from the anther of one flower to the stigma of another flower of the same kind.

11: Write short notes on sexual reproduction in plants.

Answer: Ferns reproduce by releasing spores that germinate into young ones.

12: Differentiate between asexual reproduction and sexual reproduction in plants.

13: How does an alga reproduce?

Answer: Algae reproduce by a method known as fragmentation. The breaking down of filaments into fragments that grow into young ones is called fragmentation.

14: How does yeast reproduce?

Answer: Yeast reproduces by a process called budding. A small bulb-like projection that comes out from the yeast is known as a bud. This bud grows and detaches itself from the parent cell, and then grows independently as a new plant.

15: Explain reproduction in Bryophyllum.

Answer: Bryophyllum propagates vegetatively by the formation of leaf buds on the margins of a leaf. When the buds come in contact with moist soil, each bud is capable of growing into a new plant.

16: Differentiate between unisexual flower and bisexual flower?

Answer: Bisexual flowers have both male and female reproductive structures, including stamens, carpels, and an ovary. Examples of plants having bisexual flowers include the lily, rose etc.

Flower that is either functionally male or functionally female that is the flower which contains either only the pistil or only the stamens are called unisexual flower.

17: How can we grow a new rose plant from the parent plant?

Answer: A new rose plant can be grown by cutting off a part of the stem of an existing plant, with two or more nodes, and planting it in the ground. A node is a part of the stem from where a leaf grows. This stem grows into a new rose plant.

Long Answer Type Questions

1: Explain different modes of Unisexual reproduction?

Answer: Modes of reproduction that evolve only one parent is called Unisexual reproduction.

(a) Fission: The mode of reproduction in which unicellular organism split into two equal halves and produce new ones is called binary fission. For example amoeba and bacteria

(b) Fragmentation: The mode of reproduction in which body of plant breaks up into smaller fragments and each fragment grows into a new individual is known as Fragmentation, e.g. Spirogyra, algae.

(c) Budding: The mode of reproduction in which small buds develop and get separated and matured into new organisms is called Budding. E.g. Yeast, Hydra, Bryophyllum.

(d) Spore formation: The mode of reproduction takes place by means of spores is called spore formation, eg. algae and fungi

The spores are covered by thick walls that protect them until they come into contact with another moist surface and can begin to grow.

2: How does sexual reproduction take place in flowering plants?

Answer: The sexual reproduction in flowering plants involves pollination and fertilization.

Pollination: Transfer of pollen grains from the anther to the stigma is called pollination. Pollen grains are transferred mainly by wind, water and insects. They are called as pollinating agents.

Fertilization: The fusion of a male gamete with egg is known as fertilization. The fertilized egg is known as zygote which develops into embryo.

3: Explain three artificial methods of Vegetative Propagation.

Answer:

Cutting: Here the cuttings of the “parent” plant are removed and placed in a suitable environment so that they can grow into a whole new plant. For example rose cutting.
Layering: The stem is bent down and the target region buried in the soil. The buried part of stem develops roots and is detached from the plant and develops into new plant.
Grafting: In grafting a shoot or bud of a selected, desired plant (scion) is grafted onto the stock of another type of plant.

4: State the advantages of vegetative reproduction?

Answer: Following are the advantages of vegetative reproduction:

Vegetative production allows plants to produce new plants quickly without any reproductive organs.
The plants produced by this method are exact copies of the parent plant.
New varieties of plants having required characteristics can be developed by this method.

5: Explain different types of pollination found in flowering plants.

Answer: Pollination is of two types. They are:

Self-pollination: The transfer of pollen grains from the anther of a flower to the stigma of the same flower or another flower of the same plant is known as self-pollination or autogamy.
Cross pollination: The transfer of pollen grains of a flower to the stigma of another flower of a different plant of the same species is called cross pollination or allogamy

6: Show self-pollination and cross pollination via a labelled diagram.

Answer: In ponds, or in other stagnant water bodies, the algae which looks like slimy green patches over the water surface use asexual reproduction for its growth. When water and nutrients are available algae grow and multiply rapidly by fragmentation. An alga breaks up into two or more fragments. These fragments or pieces grow into new individuals. This process continues and they cover a large area in a short period of time.

7: Describe the various ways by which seeds are dispersed.

Answer: Tiny organisms like yeast which can be seen only under a microscope, grow and multiply every few hours if sufficient nutrients are made available to them. The yeast is a single-celled organism. The small bulb-like projection coming out from the yeast cell is called a bud. The bud gradually grows and gets detached from the parent cell and forms a new yeast cell. The new yeast cell grows, matures and produces more yeast cells. If this process continues, a large number of yeast cells are produced in a short time.

8: How does the process of fertilisation take place in flowers?

Answer: The spores are asexual reproductive bodies. Each spore is covered by a hard protective coat to withstand unfavourable conditions such as high temperature and low humidity. So they can survive for a long time. Under favourable conditions, a spore germinates and develops into a new individual. Examples: Plants such as fungi, moss and ferns also reproduce by means of spores.

9: How does a fern reproduce?

Answer: In sexual reproduction, new plants are obtained from seeds. The flowers are the reproductive parts of a plant. The stamens are the male reproductive part and the pistil is the female reproductive part. A pistil consists of stigma, style and ovary. The ovary contains one or more ovules. The transfer of pollen from the anther to the stigma of a flower is called pollination. The female gamete or the egg is formed in an ovule. In sexual reproduction a male and a female gamete fuse to form a zygote. The process of fusion of male and female gametes is called fertilisation. The zygote develops into an embryo. After fertilisation, the ovary grows into a fruit and other parts of the flower fall off. The fruit is the ripened ovary. The seeds develop from the ovules. The seed contains an embryo enclosed in a protective seed coat. Seeds and fruits of plants are carried away by wind, water and animals and reproduced again on the grounds.

10: Explain reproduction in plants by spore formation.

Answer: Seed are dispersed by wind, water and animals. Winged seeds such as those of drumstick and maple, light seeds of grasses and hairy fruit of sunflower, get blown off with the wind to faraway places. Some seeds are dispersed by water. These fruits or seeds usually develop floating ability in the form of spongy or fibrous outer coat as in coconut. Some seeds are dispersed by animals, especially spiny seeds with hooks which get attached to the bodies of animals and are carried to distant places. Examples are Xanthium and Urena. Some seeds are dispersed when the fruits burst with sudden jerks. The seeds are scattered far from the parent plant. This happens in the case of castor and balsam.

11: Write short notes on reproduction in plants by vegetative propagation.

Answer: The flowers are the reproductive parts of a plant. The stamens are the male reproductive part and the pistil is the female reproductive part. A pistil consists of stigma, style and ovary. The ovary contains one or more ovules. The transfer of pollen from the anther to the stigma of a flower is called pollination. The female gamete or the egg is formed in an ovule. This process of fusion of male and female gametes in flowers is called fertilisation to form zygote. The zygote develops into an embryo. After fertilisation, the ovary grows into a fruit and other parts of the flower fall off. The fruit is the ripened ovary. The seeds develop from the ovules. The seed contains an embryo enclosed in a protective seed coat. Seeds and fruits of plants are carried away by wind, water and animals and reproduced again on the grounds.

12: Explain sexual reproduction in plants.

Answer: In sexual reproduction, new plants are obtained from seeds. The flowers are the reproductive parts of a plant. The stamens are the male reproductive part and the pistil is the female reproductive part. A pistil consists of stigma, style and ovary. The ovary contains one or more ovules. The transfer of pollen from the anther to the stigma of a flower is called pollination. The female gamete or the egg is formed in an ovule. In sexual reproduction a male and a female gamete fuse to form a zygote. The process of fusion of male and female gametes (to form a zygote) is called fertilisation. The zygote develops into an embryo. After fertilisation, the ovary grows into a fruit and other parts of the flower fall off. The fruit is the ripened ovary. The seeds develop from the ovules. The seed contains an embryo enclosed in a protective seed coat. Seeds and fruits of plants are carried away by wind, water and animals and reproduced again on the grounds.

CBSE Notes For Class 7
CBSE Class 7 Science Notes
Chapter 12: Reproduction In Plants

Reproduction in Plants Class 7 Science Notes - Chapter 12

According to the CBSE Syllabus 2023-24, this chapter has been renumbered as Chapter 8.

Introduction

Reproduction.

Reproduction is of 2 types:

– Asexual Reproduction

To know more about Asexual Reproduction, visit here .

– Sexual Reproduction

To know more about Sexual Reproduction, visit here .

Production of new individuals from their parents is known as reproduction.

To know more about Reproduction, visit here .

The modes of reproduction in plants are:

Asexual Reproduction in Organisms

In asexual reproduction, organisms can give rise to new organisms without the fusion of gametes.
Only one parent is involved.
It is a type of asexual reproduction that takes place in unicellular organisms like amoeba, paramecium etc.
A single parent cell divides into two or more daughter cells.
There are two types:
Binary Fission: a single parent cell divides into two daughter cells. (e.g. amoeba, paramecium)
Multiple Fission: a single parent cell divides into many daughter cells. (e.g. Plasmodium)

Fragmentation

Fragmentation is a form of asexual reproduction or cloning in which an organism is split into fragments.
Each of these fragments develops into a mature, fully grown individual that is a clone of the original organism.
For example, sponges and lichens reproduce through fragmentation.

To know more about Fragmentation, visit here .

Budding is a form of asexual reproduction in which a new organism develops from an outgrowth or bud due to cell division at one particular site of the parent organism.
They eventually break away from their parent. For example, hydra and yeast.

For more information on Reproduction Through Budding, watch the below video

To know more about Budding, visit here .

Spore Formation

The term is also used to refer to the process of reproduction via spores.
Spores are the reproductive bodies and are microscopic.
When these spores are released into the surrounding area, they develop into new plants under favourable conditions.
For example, Fungi and Ferns.

Vegetative Propagation

It is a type of asexual reproduction in which new plants are produced from roots, stems, leaves and buds. For example, rose and bryophyllum.

To know more about Vegetative Propagation, visit here .

Reproduction in Plants

Sexual reproduction in plants.

Sexual reproduction in plants occurs through the fusion of gametes, which eventually gives rise to seeds that develop into a new plant.
Flowers are the parts of the plant involved in sexual reproduction.
The male gamete, i.e. pollen grains, are produced by anthers, whereas the female gamete, i.e. ovule, is produced by pistils.
The male and female gametes meet due to pollination, fuse by fertilization and give rise to a new plant by fruit and seed formation.

For more information on Plant Reproduction, watch the below video

To know more about Sexual Reproduction in Plants, visit here .

Pollination

Pollination is the act of transferring pollen grains from the male part of the flower, i.e. anthers, to the female part of the flower, i.e. stigma.

To know more about Pollination, visit here .

Types of Pollination

There are two types of pollination:

If the pollen happens to land on the stigma of the same flower, it is called self-pollination .
When the pollen of a flower lands on the stigma of another flower of the same plant, or that of a different plant of the same kind, it is called cross-pollination.

To know more about types of pollination, visit here .

In sexual reproduction, a male and a female gamete fuse to form a zygote.
So in the case of plants, the male gametes present in the pollen grains fuse with the female gamete, i.e. egg.
This fusion is called fertilization, and the cell formed out of the fusion is called as a zygote.

To know more about zygotes, visit here .

Fertilisation

Fertilization is the phenomena of fusion of the male gamete with the female gamete cell.

The zygote further develops to form the embryo.
In animals, the embryo grows into an adult.
In Plants, the embryo further gives rise to the shoot system and root system.

Fruits and Seed Formation

In plants, post fertilisation, the ovary develops into a fruit and other parts of the flower fall off.
The ripened ovary forms the fruit.
The ovules form the seeds.

To know more about Seed Formation, visit here .

Seed Dispersal

Seeds and fruits of plants are dispersed away by wind, water and animals.
The seeds show different characteristics depending on their dispersing agent.

To know more about Seed Dispersal, visit here .

Seeds are winged and light to get carried by the wind. For example, maple and drumstick.
Hairy seeds, eg: aak (Madar) and hairy fruit of the sunflower.
These seeds or fruits normally develop the ability to float in the form of fibrous or spongy outer coats, For example, coconut.
Spiny seeds with hooks are attached to the animal body and are hence carried to distant places. For example, Xanthium and Urena

Few of the seeds disperse when the fruits burst out with a sudden jerk, which gets scattered away to a distance far from the parent plant. Eg: Balsam and Castor.

Frequently Asked Questions on CBSE Class 7 Science Notes Chapter 12 Reproduction in Plants

What are the three types of meristematic tissue.

1. Apical meristem2. Lateral meristem3. Intercalary meristem

What are the functions of a permanent tissue?

1. Providing support 2. Protection as well as in photosynthesis 3. Conduction of water, minerals and nutrients

What are the parts of a plant?

Plants typically have six basic parts: roots, stems, leaves, flowers, fruits and seeds.

Register with BYJU'S & Download Free PDFs

School Solutions
Star Program
NCERT Solutions Class 12 Maths
NCERT Solutions Class 12 Physics
NCERT Solutions Class 12 Chemistry
NCERT Solutions Class 12 Biology
NCERT Solutions Class 12 Commerce
NCERT Solutions Class 12 Economics
NCERT Solutions Class 12 Accountancy
NCERT Solutions Class 12 English
NCERT Solutions Class 12 Hindi
NCERT Solutions Class 11 Maths
NCERT Solutions Class 11 Physics
NCERT Solutions Class 11 Chemistry
NCERT Solutions Class 11 Biology
NCERT Solutions Class 11 Commerce
NCERT Solutions Class 11 Accountancy
NCERT Solutions Class 11 English
NCERT Solutions Class 11 Hindi
NCERT Solutions Class 11 Statistics
NCERT Solutions Class 10 Maths
NCERT Solutions Class 10 Science
NCERT Solutions Class 10 English
NCERT Solutions Class 10 Hindi
NCERT Solutions Class 10 Social Science
NCERT Solutions Class 9 Maths
NCERT Solutions Class 9 Science
NCERT Solutions Class 9 English
NCERT Solutions Class 9 Hindi
NCERT Solutions Class 9 Social Science
NCERT Solutions Class 8 Maths
NCERT Solutions Class 8 Science
NCERT Solutions Class 8 English
NCERT Solutions Class 8 Hindi
NCERT Solutions Class 8 Social Science
NCERT Solutions Class 7 Maths
NCERT Solutions Class 7 Science
NCERT Solutions Class 7 English
NCERT Solutions Class 7 Hindi
NCERT Solutions Class 7 Social Science
NCERT Solutions Class 6 Maths
NCERT Solutions Class 6 Science
NCERT Solutions Class 6 English
NCERT Solutions Class 6 Hindi
NCERT Solutions Class 6 Social Science
NCERT Solutions Class 5 Maths
NCERT Solutions Class 5 English
NCERT Solutions Class 5 EVS
NCERT Solutions Class 4 Maths
NCERT Solutions Class 4 English
NCERT Solutions Class 4 EVS
NCERT Solutions Class 4 Hindi
NCERT Solutions Class 3 Maths
NCERT Solutions Class 3 English
NCERT Solutions Class 3 EVS
NCERT Solutions Class 3 Hindi
NCERT Solutions Class 2 Maths
NCERT Solutions Class 2 English
NCERT Solutions Class 2 Hindi
NCERT Solutions Class 1 Maths
NCERT Solutions Class 1 English
NCERT Solutions Class 1 Hindi
NCERT Books Class 12
NCERT Books Class 11
NCERT Books Class 10
NCERT Books Class 9
NCERT Books Class 8
NCERT Books Class 7
NCERT Books Class 6
NCERT Books Class 5
NCERT Books Class 4
NCERT Books Class 3
NCERT Books Class 2
NCERT Books Class 1
Important Questions Class 12
Important Questions Class 11
Important Questions Class 10
Important Questions Class 9
Important Questions Class 8
Important Questions Class 7
important questions class 6
CBSE Class 12 Revision Notes
CBSE Class 11 Revision Notes
CBSE Class 10 Revision Notes
CBSE Class 9 Revision Notes
CBSE Class 8 Revision Notes
CBSE Class 7 Revision Notes
CBSE Class 6 Revision Notes
CBSE Class 12 Syllabus
CBSE Class 11 Syllabus
CBSE Class 10 Syllabus
CBSE Class 9 Syllabus
CBSE Class 8 Syllabus
CBSE Class 7 Syllabus
CBSE Class 6 Syllabus
CBSE Class 5 Syllabus
CBSE Class 4 Syllabus
CBSE Class 3 Syllabus
CBSE Class 2 Syllabus
CBSE Class 1 Syllabus
CBSE Sample Question Papers For Class 12
CBSE Sample Question Papers For Class 11
CBSE Sample Question Papers For Class 10
CBSE Sample Question Papers For Class 9
CBSE Sample Question Papers For Class 8
CBSE Sample Question Papers For Class 7
CBSE Sample Question Papers For Class 6
CBSE Sample Question Papers For Class 5
CBSE Sample Question Papers For Class 4
CBSE Sample Question Papers For Class 3
CBSE Sample Question Papers For Class 2
CBSE Sample Question Papers For Class 1
CBSE Previous Year Question Papers Class 12
CBSE Previous Year Question Papers Class 10
Extra Questions For Class 8 Maths
Extra Questions For Class 8 Science
Extra Questions For Class 9 Maths
Extra Questions For Class 9 Science
Extra Questions For Class 10 Maths
Extra Questions For Class 10 Science
NEET 2021 Question Paper
NEET 2020 Question Paper
NEET 2019 Question Paper
NEET 2018 Question Paper
NEET 2017 Question Paper
NEET 2016 Question Paper
NEET 2015 Question Paper
NEET Physics Questions
NEET Chemistry Questions
NEET Biology Questions
NEET Sample Papers
NEET Physics Syllabus
NEET Chemistry Syllabus
NEET Biology Syllabus
NEET Mock Test
NEET Eligibility Criteria
JEE Main 2021 Question Paper
JEE Main 2020 Question Paper
JEE Main 2019 Question Paper
JEE Main 2018 Question Paper
JEE Main 2017 Question Paper
JEE Main 2016 Question Paper
JEE Main 2015 Question Paper
JEE Main Sample Papers
JEE Main Physics Syllabus
JEE Main Chemistry Syllabus
JEE Main Maths Syllabus
JEE Main Physics Questions
JEE Main Chemistry Questions
JEE Main Maths Questions
JEE main revision notes
JEE Main Mock Test
JEE Advanced Physics Questions
JEE Advanced Chemistry Questions
JEE Advanced Maths Questions
JEE Advanced 2021 Question Paper
JEE Advanced 2020 Question Paper
JEE Advanced 2019 Question Paper
JEE Advanced 2018 Question Paper
JEE Advanced 2017 Question Paper
JEE Advanced 2016 Question Paper
JEE Advanced 2015 Question Paper
JEE Advanced Physics Syllabus
JEE Advanced Chemistry Syllabus
JEE Advanced Maths Syllabus
JEE Advanced Mock Test
ISC Class 12 Syllabus
ISC Class 11 Syllabus
ICSE Class 10 Syllabus
ICSE Class 9 Syllabus
ICSE Class 8 Syllabus
ICSE Class 7 Syllabus
ICSE Class 6 Syllabus
ISC Sample Question Papers for Class 12
ISC Sample Question Papers for Class 11
ICSE Sample Question Papers for Class 10
ICSE Sample Question Papers for Class 9
ICSE Sample Question Papers for Class 8
ICSE Sample Question Papers for Class 7
ICSE Sample Question Papers for Class 6
ICSE Class 10 Revision Notes
ICSE Class 9 Revision Notes
ISC Important Questions for Class 12
ISC Important Questions for Class 11
ICSE Important Questions for Class 10
ICSE Important Questions for Class 9
ICSE Important Questions for Class 8
ICSE Important Questions for Class 7
ICSE Important Questions for Class 6
ISC Class 12 Question Paper
ICSE Class 10 Question Paper
Maharashtra Board Syllabus
Maharashtra Board Sample Question Paper
Maharashtra Board Previous Year Question Paper
AP Board Syllabus
AP Board Sample Question Paper
AP Board Previous Year Question Paper
Tamilnadu Board Syllabus
Tamilnadu Board Sample Question Paper
Tamilnadu Board Previous Year Question Paper
Telangana Board Syllabus
Telangana Board Sample Question Paper
Telangana Board Previous Year Question Paper
Karnataka Board Syllabus
Karnataka Board Sample Question Paper
Karnataka Board Previous Year Question Paper
Examination Full Forms
Physics Full Forms
Chemistry Full Forms
Biology Full Forms
Educational Full Form
CUET Eligibility Criteria
CUET Exam Pattern
CUET Cutoff
CUET Syllabus
CUET Admit Card
CUET Counselling
CUET Previous Year Question Papers
CUET Application Form
CUET Sample Papers
CUET Exam Centers
CUET Exam Dates
CUET Results
Physics Formulas
Chemistry Formulas
Math Formulas
Algebra Formulas
Geometry Formulas
Trigonometry Formulas
Subscription

Reproduction in Plants NCERT Solutions – Class 7 Science

Home » NCERT Solutions » Reproduction in Plants NCERT Solutions – Class 7 Science

CBSE Important Questions
Important Questions Class 6
CBSE Previous Year Question Papers
CBSE Revision Notes
CBSE Syllabus
CBSE Extra Questions
CBSE Sample Papers
ISC & ICSE Syllabus
ICSE Syllabus Class 9
ICSE Syllabus Class 8
ICSE Syllabus Class 7
ICSE Syllabus Class 6
ICSE Syllabus Class 10
ICSE Question Paper
ICSE Sample Question Papers
ISC Sample Question Papers For Class 12
ISC Sample Question Papers For Class 11
ICSE Sample Question Papers For Class 10
ICSE Sample Question Papers For Class 9
ICSE Sample Question Papers For Class 8
ICSE Sample Question Papers For Class 7
ICSE Sample Question Papers For Class 6
ICSE Revision Notes
ICSE Important Questions
ISC Important Questions For Class 12
ISC Important Questions For Class 11
ICSE Important Questions For Class 10
ICSE Important Questions For Class 9
ICSE Important Questions For Class 8
ICSE Important Questions For Class 7
ICSE Important Questions For Class 6
Maharashtra board
Rajasthan-Board
Andhrapradesh Board
AP Board syllabus
Telangana Board
Tamilnadu Board
Tamilnadu Sample Question Paper
Tamilnadu Syllabus
Tamilnadu Previous Year Question Paper
NCERT Solutions Class 12
NCERT Solutions Class 10
NCERT Solutions Class 11
NCERT Solutions Class 9
NCERT Solutions Class 8
NCERT Solutions Class 7
NCERT Solutions Class 6
NCERT Solutions Class 5
NCERT Solutions Class 4
NCERT Solutions Class 3
NCERT Solutions Class 2
NCERT Solutions Class 1
JEE Main Question Papers
JEE Main Syllabus
JEE Main Questions
JEE Main Revision Notes
JEE Advanced Question Papers
JEE Advanced Syllabus
JEE Advanced Questions
JEE Advanced Sample Papers
NEET Question Papers
Neet 2021 Question Paper
Neet 2020 Question Paper
Neet 2019 Question Paper
Neet 2018 Question Paper
Neet 2017 Question Paper
Neet 2016 Question Paper
Neet 2015 Question Paper
NEET Syllabus

Reproduction in plants is one of the most vital chapters of Class 7 Science. It has many complicated concepts which require a clear understanding. We recommend Extramarks NCERT Solutions for Class 7 Science Chapter 12 that will help students to get an overview of the chapter with diagrams and illustrations to retain information and help them excel in their exams. Extramarks offers clear and concise solutions for students’ reference. Students can refer to these during their exam preparations, revisions, and even help with their assignments. It’s beneficial for all the students irrespective of their level.

NCERT Solutions for Class 7 Science Chapter 12

Access ncert solutions for class 7 science chapter no. 12 – reproduction in plants, why do we need ncert solution for class 7th science chapter 12 reproduction in plants.

Exam preparation for any subject isn’t complete if you haven’t solved or at least glanced through NCERT questions. Many of the exam questions that students face follow a very similar pattern to the questions given in the NCERT textbook.

This is what makes NCERT Solutions For Class 7 Science Chapter 12 an exceptional and unique learning resource for students. While the syllabus is vast, glancing through these solutions will give students a lot of confidence in facing their exam questions and how to frame the right answer. It will also encourage and motivate the students to aim higher and be proud of themselves. To stay curious and enjoy the process of learning without feeling stressed or anxious. Hang on there is more to it. These solutions are available online as well as offline.

Enhanced Learning with Proper Diagrams

NCERT Solutions For Class 7 Science Chapter 12 are curated by subject matter experts that take special care in drafting these solutions. They make sure to provide accurate and thorough solutions with proper explanations, examples, and diagrams wherever required. This not only enhances the student’s understanding of concepts but also gives them an idea of how they can write answers in their final exams and come out with flying colours.

Saves Preparation Time

NCERT Solutions For Class 7 Science Chapter 12 are, no doubt, a time saviour. Have you ever gotten stuck on NCERT questions that you just can’t figure out how to answer? Now, you don’t need to worry about that! With these detailed solutions, students will be able to save their preparation time. They can focus their time towards solving questions with authentic, concise answers and maximise practising sample papers instead of rummaging through books and other sources to get the right answer. A quick glance at these solutions right before their exam will give students immense confidence and will definitely help them to score better.

NCERT Solutions for Class 7 Science Chapter 12 Reproduction in Plants

Reproduction in plants is nothing but the production of new offspring in plants. In the chapter, students will learn about the two kinds of reproduction in plants namely, sexual reproduction and asexual reproduction.

Some of the important topics in this chapter include modes of reproduction, ways of sexual reproduction, vegetative propagation, pollination, fertilisation, fragmentation, spore formation, fruits and seed formation, and seed dispersal.

Click to share on Facebook (Opens in new window)
Click to share on Twitter (Opens in new window)
Click to share on LinkedIn (Opens in new window)
Click to share on WhatsApp (Opens in new window)

Q.1 Fill in the blanks: (a) Production of new individuals from the vegetative part of parent is called _____________. (b) A flower may have either male or female reproductive parts. Such a flower is called _____________. (c) The transfer of pollen grains from the anther to the stigma of the same or of another flower of the same kind is known as _____________. (d) The fusion of male and female gametes is termed as _____________. (e) Seed dispersal takes place by means of _____________, _____________ and _____________.

(a) Vegetative propagation (b) Unisexual flower (c) Self-pollination (d) Fertilisation (e) wind, water and animals

Q.2 Describe the different methods of asexual reproduction. Give examples.

There are four different methods of asexual reproduction which are as follows:

Fragmentation- In this process, an organism, like algae, breaks down into two or more fragments and each fragment gives rise to a new individual. For example, Spirogyra undergoes fragmentation as shown below:

Q.3 Explain what you understand by sexual reproduction.

Sexual reproduction is the process of producing offspring by an organism with involvement of male and female sexes. It involves fusion of male and female gametes that leads to the formation of zygote. The male and female gametes are produced by male and female flower parts, respectively. Male part of the plant is stamen that bears male gametes inside the pollens and female part of the plant is pistil that bears ovary containing female gamete or ovum. Pollens fall on stigma of the flower and germinate to form pollen tubes containing male gametes. Pollen tube enters the ovary releasing male gametes. One of the gametes fuses with ovum and undergo fertilisation to form zygote, completing the process of sexual reproduction.

Sketch the reproductive parts of a flower.

Q.4 State the main difference between asexual and sexual reproduction.

In asexual reproduction, single parent gives rise to the offspring without producing seeds whereas, in sexual reproduction two parents of opposite sex participate to produce a seed from which a new individual emerges.

Q.5 Various male and female reproductive parts of the flower can be sketched as follows:

Q.6 How does the process of fertilisation take place in flowers?

The process of fertilisation takes place after pollination. Pollens on reaching the stigma of the flower germinate to form pollen tubes that carry male gametes. One of the male gametes fuses with female gamete on reaching ovary forming zygote.

Q.7 Explain the difference between self-pollination and cross-pollination.

In self-pollination, the pollens are deposited on the stigma of either the same flower or another flower on the same plant. In cross-pollination, pollens are deposited from one flower to another flower of the same kind, borne on another plant.

Q.8 Describe the various ways by which seeds are dispersed.

Seed are carried by wind, water and animals for dispersal.

1. Some seeds, which are light and have wings or hair, are easily carried away by wind. For example, seeds of maple have wings and seeds of madar have hair. 2. Some other seeds develop thick fibrous coating to acquire floating ability and are dispersed by water. For example, coconut seed has fibrous seed coat. 3. Some other plants produce seeds with hook-like structures or spines with the help of which they get attached to the bodies of animals and disperse to larger distances. For example, seeds of Xanthium and Urena have hooks and spines.

Q.9 Match items in Column I with those in Column II:

The correctly matched contents of Column I with Column II are as follows:

Q.10 Tick (√) the correct answer:

(a) The reproductive part of a plant is the (i) leaf (ii) stem (iii) root (iv) flower

(b) The process of fusion of the male and the female gametes is called (i) fertilisation (ii) pollination (iii) reproduction (iv) seed formation

(d) A spore producing organism is (i) rose (ii) bread mould (iii) potato (iv) ginger

(e) Bryophyllum can reproduce by its (i) stem (ii) leaves (iii) roots (iv) flower

(a) The reproductive part of a plant is the (iv) flower. (b) The process of fusion of the male and the female gametes is called (i) fertilisation. (c) Mature ovary forms the (iv) fruit. (d) A spore producing plant is (ii) bread mould. (e) Bryophyllum can reproduce by its (ii) leaves.

Please register to view this section

Faqs (frequently asked questions), 1. what do you understand by sexual reproduction in plants according to the chapter 12 of the class 7 science.

Sexual reproduction is the process through which plants reproduce. The male and the female gametes of the plants fuse to produce what is known as a zygote. This further develops into a new plant through the process of sexual reproduction. The new plant is distinct in many aspects from its parents.

2. What are the important topics covered in Chapter 12 Reproduction in Plants?

Reproduction in plants covers a wide range range of topics such as vegetative propagation, modes of asexual reproduction, fragmentation, spore formation, budding, fertilisation, pollination, and many more. The reproduction in plants chapter deals with various ways of reproduction and must be understood well. To comprehend these concepts well, you can check out the NCERT Solutions Class 7 at Extramarks.

3. How can I prepare for the Chapter 12 of Class 7 Science?

The best way to prepare the chapter would be to first go through the entire chapter on your own.. Then try to answer all the textbook questions yourself. Next, go through the entire exercise without the help of solutions. Once you are done, then pick up NCERT Solutions for Class 7 Science Chapter 12 by Extramarks and cross check all your answers. Pay close attention to how subject experts have framed the solutions and try to incorporate the same in your answers. . This will definitely help you to write better answers in your final exams as well.

4. Are NCERT Solutions for Class 7 Chapter 12 by Extramarks accurate?

Extramarks takes utmost care in maintaining the quality of these solutions. All the solutions are prepared by subject matter experts with years of experience in their respective fields. They work conscientiously and diligently to prepare authentic, concise answers with thorough explanations with examples, illustrations etc.so that students can understand better. Also, this way students know how to write in final exams to score well in academics.

NCERT Solutions Related Links

Fill this form to view question paper

Otp verification.

Electric Currents and Its Effects Class 7 Case Study Questions Science Chapter 10

Download CBSE and ICSE Books in PDF Format

Last Updated on October 22, 2024 by XAM CONTENT

Hello students, we are providing case study questions for class 7 science. Case study questions are the new question format that is introduced in CBSE board. The resources for case study questions are very less. So, to help students we have created chapterwise case study questions for class 7 science. In this article, you will find case study questions for cbse class 7 science chapter 10 Electric Currents and Its Effects.

Customised Study Materials for Teachers, Schools and Coaching Institute

Table of Contents

Case Study Questions on Electric Currents and Its Effects

Question 1:

Read the given passage below and answer the question:

Electricity is the form of energy which we use electricity for many purposes to make our tasks easier. Electricity makes it possible to light our homes, roads, offices, markets and factories even after sunset. A bulb has a thin wire that gives off light. The wire of an electric bulb gets heated to such a high temperature that it starts glowing. Nowadays The fluorescent CFLs and LED bulbs are being used for lighting as they are considered to much better than incandescent electric bulbs. However, damaged CFLs need to be disposed off safely. It is advised to use electrical appliances and gadgets, which are electricity efficient. It also advisable to use ISI marked electrical appliances and gadgets

Q.1. What is the name of thin wire in the electric bulb? (a) Element (b) Coil (c) Filament (d) Fuse

Difficulty Level: Easy

Ans. Option (c) is correct. Explanation: An electric bulb has a filament that is connected to its terminals. The filament of an electric bulb gets heated to such a high temperature that it starts glowing.

Q.2. CFLs and LED stand for: (a) Compact fluorescent lamps and light emitting diode. (b) Composed fluorescent lamps and light emitting diode. (c) Compact fluorescent lamps and light emission diode. (d) Composed fluorescent lamps and light emission diode.

Difficulty Level: Medium

Ans. Option (a) is correct. Explanation: CFLs – Compact fluorescent lamps, LED – light emitting diode.

Q.3. Fluorescent tubes and CFLs contain toxic gas: (a) carbon monoxide (b) water vapour (c) mercury vapours (d) Chlorofluorocarbons

Difficulty Level: Hard

Ans. Option (c) is correct. Explanation: Fluorescent tubes and CFLs contain mercury vapour, toxic in nature. Therefore, damaged fluorescent tubes or CFLs need to be disposed off safely.

Q.4. What is a disadvantage of using incandescent electric bulbs? How LED bulbs are better than incandescent bulbs and CFLs?

Ans. Incandescent electric bulbs give heat therefor, a part of electricity consumed is used in producing heat which results in the wastage of electricity. LED bulbs consume less electricity as compared to incandescent bulbs or CFLs. Thus, LED bulbs are much electricity efficient.

Q.5. Who assigns ISI mark? Why is it suggested to use ISI mark products?

Ans. Bureau of Indian Standards, New Delhi assigns a Standard Mark on products, called ISI mark. The ISI mark is an assurance of conformity to the specifications given on the products. It is therefore suggested to use ISI mark products.

Motion and Time Class 7 Case Study Questions Science Chapter 9
Reproduction in Plants Class 7 Case Study Questions Science Chapter 8
Transpirations in Animals and Plants Class 7 Case Study Questions Science Chapter 7
Respiration in Organisms Class 7 Case Study Questions Science Chapter 6
Physical and Chemical Changes Class 7 Case Study Questions Science Chapter 5
Acids Bases and Salts Class 7 Case Study Questions Science Chapter 4
Heat Class 7 Case Study Questions Science Chapter 3

Nutrition in Animals Class 7 Case Study Questions Science Chapter 2

Nutrition in plants class 7 case study questions science chapter 1, topics from which case study questions may be asked.

Define electric current.
Define electricity.
Discuss electric circuits and its components.
Describe the heating effect of electric current.
Explain the magnetic effect of electric current.

We use electrical appliances in everyday life from morning to night. We use electric bulbs, air conditioners, refrigerators, etc., They run with the help of electrical energy.

Electricity is the form of energy, which is used to run appliances, move things and to do work using these appliances.
Electricity can be generated naturally through lightning or artificially through the generator.
Electric circuit is a continuous and closed circuit of electric current.

Components of electric circuit: Bulb, electric cell, switch (key), conductors, bulb and other devices which are used .

For further practice on case study questions related to Class 7 Science Chapter 10 Electric Currents and Its Effects, we recommend exploring the link given below.

Frequently Asked Questions (FAQs) on Electric Currents and Its Effects Case Study Questions

Q1: what are case study questions for cbse examinations.

A1: Case study questions in CBSE examinations typically involve scenarios or real-life examples, requiring students to apply their understanding of concepts to solve problems or analyze situations.

Q2: Why are case study questions important for understanding class 7 science chapters?

A2: Case study questions provide a practical context for students to apply theoretical knowledge to real-world situations, fostering deeper understanding and critical thinking skills.

Q3: How do case study questions differ from other question types?

A3: Unlike direct questions that test specific knowledge, case study questions involve analyzing a scenario, understanding the context, and applying various scientific concepts to answer the questions. They test higher-order thinking skills such as analysis, synthesis, and evaluation.

Q4: Are there any resources available online for students to practice case study questions on class 7 science chapters for CBSE exams?

A4: Yes, several educational websites offer case study questions for CBSE students preparing for science examinations. We also offer a collection of case study questions for all classes and subject on our website. Visit our website to access these questions and enhance your learning experience. There is another website Physics Gurukul that offers a large collection of case study questions.

Q5: How can students effectively prepare for case study questions on Electric Currents and Its Effects for CBSE exams?

A5: Effective preparation strategies include regular revision of concepts, solving practice questions, analyzing case studies from previous exams, seeking clarification on doubts, and consulting with teachers or peers for guidance and support.

Q6: How can teachers incorporate case study questions on Electric Currents and Its Effects class 7 science into classroom teaching?

A6: Teachers can integrate case studies into lesson plans, group discussions, or interactive activities to engage students in active learning, promote problem-solving skills, and facilitate a deeper understanding of Electric Currents and Its Effects.

Q7: What steps should I follow to correctly answer case study questions?

A7: Follow these steps: Read the case study carefully. Understand the scenario and the information provided. Identify the key concepts. Determine which scientific principles or concepts are relevant to the case study. Analyze the information. Break down the information, identify relationships, and note any data or facts given. Answer the questions. Apply your knowledge to answer the questions, ensuring that your responses are based on the case study and the relevant scientific concepts.

Q8: What should I check when reading a case study?

A8: Check the following: Context and background: Understand the setting and context of the case study. Key facts and data: Identify important details, data points, and observations mentioned. Relevant concepts: Recognize which scientific concepts and principles are applicable. Questions asked: Carefully read each question to understand what is being asked and how it relates to the case study.

Q9: What are common mistakes to avoid when answering case study questions?

A9: Common mistakes include: Not reading the case study carefully: Missing important details and context. Ignoring key concepts: Failing to identify and apply relevant scientific principles. Superficial analysis: Providing answers that lack depth and do not fully address the questions. Making assumptions: Adding information not provided in the case study or making unsupported assumptions.

Q10: How can I ensure my answers are thorough and well-structured?

A10: Ensure your answers are thorough and well-structured by: Organizing your thoughts: Structure your answer logically with a clear introduction, body, and conclusion. Using evidence: Support your answers with specific information from the case study. Applying relevant concepts: Clearly explain how scientific principles relate to the case study. Reviewing your answers: Check for completeness and accuracy, ensuring all parts of the question are addressed.

Q11: What are the important keywords from the chapter “Electric Currents and Its Effects”?

A11: Important keywords from the chapter “Electric Currents and Its Effects” are given below: Appliances: A machine or device designed to perform a specific task or function. Generator: A machine which generates something for example electricity. Circuit: A circular path in which electricity flows. Resistance: An electrical component which resists or opposes the flow of electric current. Fuse: A safety device used in electric circuits. Coil: A long thin piece of wire spiralled into circles.

Motion and Time Class 7 Case Study Questions Science Chapter 9

IMAGES

Reproduction in Plants || Class 7 || Chapter 12 || Science
NCERT Solutions for Class 7 Science Chapter 12 Reproduction in Plants
Mindmap: Reproduction in Plants
KSEEB Solutions for Class 7 Science Chapter 12 Reproduction in Plants
Reproduction In Plants
Reproduction In Plants,

VIDEO

Reproduction in Plants
Reproduction in Plants
Chapter 12 (Reproduction In Plants) Class 7 SCIENCE NCERT (UPSC/PSC+School Education)
Part- 1
What is budding? Class 7 Science/Reproduction in Plants
class 7 Social science Mid term exam24-25 (8/10/24) सामाजिक विज्ञान‌ Question paper with solution

COMMENTS

Reproduction in Plants Class 7 Case Study Questions Science Chapter 8
A8: Check the following: Context and background: Understand the setting and context of the case study. Key facts and data: Identify important details, data points, and observations mentioned. Relevant concepts: Recognize which scientific concepts and principles are applicable. Questions asked: Carefully read each question to understand what is being asked and how it relates to the case study.
Case Study Questions for Class 7 Science Chapter 12 Reproduction in Plants
Case Study/Passage Based Questions. Passage-1. Cell which is produced after fusion of gametes is called a zygote. Fusion of male and female gametes (to form a zygote) is called fertilization. Zygote develops into an embryo. 1. Zygote formation occurs in: (a) asexual reproduction. (b) sexual reproduction.
Class 7 Science Case Study Question
CBSE Class 7 Science Case Study Question. Chapter 1 Nutrition in Plants Case Study Question. Chapter 2 Nutrition in Animals Case Study Question. Chapter 3 Fibre to Fabric Case Study Question. Chapter 4 Heat Case Study Question. Chapter 5 Acids, Bases and Salts Case Study Question. Chapter 6 Physical and Chemical Changes Case Study Question.
Reproduction in Plants Class 7 Extra Questions Science Chapter 12
Answer: Reproduction is the process of production of new similar organisms from their parents. Question 11. Name two plants where vegetative reproduction takes place by roots. Answer: Sweet potato and dahlia develops new plants through their roots by the process of vegetative reproduction. Question 12.
Class 7- Chapter 8
This set of 6 worksheets, corresponding to the "Reproduction in Plants" chapter, covers asexual and sexual plant reproduction. It includes key concepts such as vegetative propagation, pollination, and seed dispersal. Provided in solved and unsolved formats, these resources aim to enhance understanding through practical exercises, serving as an effective tool for learning and self-assessment in ...
NCERT Solutions Class 7 Science Chapter 12 Reproduction in Plants
Q.10. Tick (%/) the correct answer: (a) The reproductive part of a plant is the. (i) leaf (ii) stem (iii) root (iv) flower. (b) The process of fusion of the male and the female gametes is called. (i) fertilisation (ii) pollination (iii) reproduction (iv) seed formation. c) Mature ovary forms the.
Important Questions Class 7 Science Chapter 12
Answer 2: Sexual reproduction involves the production of seeds, which is a result of the fusion of male and female gametes. In plants, the stamen and pistil are the male and female reproductive organs present in flowers. The main function of the flower in a plant is to reproduce.
NCERT Solutions Class 7 Science Chapter 12 Reproduction in Plants
Explain sexual reproduction in plants from Chapter 12 of NCERT Solutions for Class 7 Science. Sexual reproduction in plants is a process in which both male and female gametes fuse to form a new individual. Pistils and stamens are the female and male reproductive organs in plants which bear ovaries and anthers, respectively.
Extra Questions for Class 7 Science Chapter 12 Reproduction In Plants
The female gamete or the egg is formed in an ovule. In sexual reproduction a male and a female gamete fuse to form a zygote. 3. Explain the difference between self-pollination and cross-pollination. Answer: If the pollen lands on the stigma of the same flower it is called self-pollination.
Reproduction in Plants Class 7 Notes Science Chapter 12
Asexual reproduction in plants occurs through the following methods: Vegetative propagation. Budding. Fragmentation. Spore formation. 1. Vegetative Propagation. It is the formation of new plants from vegetative units of bud, stem, etc. These vegetative units are called propagules.
CBSE Class 7 Science Reproduction in Plants NCERT Study Notes & Solutions
Reproduction is the process of producing young ones from their parents. A flower is the reproductive organ of a plant. There are several ways by which different plants reproduce. These are categorized into two types: Asexual Reproduction; Sexual Reproduction . ASEXUAL REPRODUCTION. In asexual reproduction, the new plants are obtained without ...
NCERT Solutions for Class 7 Science Chapter 12 Reproduction in Plants
Sexual reproduction involves the fusion of male and female gametes. In asexual reproduction, plants can give rise to new plants without seeds. Examples are flowering plants, such as Hibiscus, corn, papaya, etc. Examples are yeast, rose, jasmine, potato, etc. Question 5: Sketch the reproductive parts of a flower. Answer:
NCERT Solutions for Class 7 Science
Vegetative propagation is an asexual method of reproduction in plants in which lower plants reproduce vegetatively through various methods like budding, fission, fragmentation, spores, buds etc. With the flowering parts roots, stems, leaves and buds helps in the vegetative propagation. For example: tuberous roots of modified plants can be ...
Motion and Time Class 7 Case Study Questions Science Chapter 9
A8: Check the following: Context and background: Understand the setting and context of the case study. Key facts and data: Identify important details, data points, and observations mentioned. Relevant concepts: Recognize which scientific concepts and principles are applicable. Questions asked: Carefully read each question to understand what is being asked and how it relates to the case study.
Reproduction in Plants Important Questions Class 7 Science ...
4: Modes of reproduction evolve only one parent is called unisexual reproduction. True/ False. Answer: True. 5: Name vegetative parts of plants. Answer: Root, stem and leaves. 6: Name the reproductive organ of a flowering plant. Answer: Flower. 7: State the two types of reproduction in plants.
Transpirations in Animals and Plants Class 7 Case Study Questions
A8: Check the following: Context and background: Understand the setting and context of the case study. Key facts and data: Identify important details, data points, and observations mentioned. Relevant concepts: Recognize which scientific concepts and principles are applicable. Questions asked: Carefully read each question to understand what is being asked and how it relates to the case study.
NCERT Exemplar Solutions Class 7 Science Chapter 12 Reproduction in Plants
NCERT Exemplar Solutions for Class 7 Science Chapter 12 Reproduction in Plants is a very important study material for the students in order to have complete knowledge of the concepts involved in plant reproduction. These NCERT exemplar solutions are created to give them in-depth knowledge of the concepts covered in this chapter and thus score good marks in the annual exam.
PDF Reproduction in Plants T not to be republished
Asexual reproduction In asexual reproduction new plants are obtained without production of seeds or spores. Vegetative propagation It is a type of asexual reproduction in which new plants are produced from roots, stems, leaves and buds. Since reproduction is through the vegetative parts of the plant, it is known as vegetative propagation ...
CBSE Class 7 Science Reproduction in Plants Competency ...
It includes Multiple Choice Questions, Case-based Questions, Assertion-Reasoning Questions, and even Source-Based Questions to help the students undergo an intelligent preparation process. The intent of these questions is to facilitate self-practice. They will test your ability to apply what you have learned rather than testing your memory.
Reproduction in Plants Class 7 Science Notes
Flowers are the parts of the plant involved in sexual reproduction. The male gamete, i.e. pollen grains, are produced by anthers, whereas the female gamete, i.e. ovule, is produced by pistils. The male and female gametes meet due to pollination, fuse by fertilization and give rise to a new plant by fruit and seed formation.
Reproduction in Plants NCERT Solutions
NCERT Solutions for Class 7 Science Chapter 12 Reproduction in Plants. Reproduction in plants is nothing but the production of new offspring in plants. In the chapter, students will learn about the two kinds of reproduction in plants namely, sexual reproduction and asexual reproduction. Some of the important topics in this chapter include modes ...
Electric Currents and Its Effects Class 7 Case Study Questions Science
A8: Check the following: Context and background: Understand the setting and context of the case study. Key facts and data: Identify important details, data points, and observations mentioned. Relevant concepts: Recognize which scientific concepts and principles are applicable. Questions asked: Carefully read each question to understand what is being asked and how it relates to the case study.