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NCERT Solutions for Class 7 Science Chapter 8 Reproduction in Plants
Edited By Irshad Anwar | Updated on May 22, 2025 11:26 AM IST
Class 7 Science Chapter 8, Reproduction in Plants, educates students about reproduction and why it is necessary for the survival of living organisms. The chapter describes the two primary forms of reproduction among plants: asexual and sexual. Asexual reproduction involves techniques such as vegetative propagation, budding, fragmentation, and spore production, while sexual reproduction is the union of male and female gametes. Important words like pollination, fertilisation, seed development, and seed dispersal are explained to help the students understand the plant life cycle. The NCERT Solutions for Class 7 have illustrations and examples provided so that these terms become easier to understand.
This Story also Contains
- Download PDF of NCERT Solutions for Class 7 Science Chapter 8: Reproduction in Plants
- Solved Exercise Questions of NCERT Solutions for Class 7 Science Chapter 8 Reproduction in Plants
- Approach to Solve NCERT Solutions for Class 7 Science Chapter 8 "Reproduction in Plants"
- Major Topics in Class 7 Science Chapter 8- Reproduction in Plants
- Important Question on Chapter 8 Reproduction in Plants
- NCERT Solutions for Class 7 Science Chapter-Wise
Care should be taken while studying such subjects as flower structure, seed germination, and seed dispersal. The NCERT Solutions are prepared in accordance with the CBSE syllabus and help students prepare for the exam. With these solutions, students are able to solve questions on sexual and asexual reproduction and increase their marks. This makes the NCERT Solutions for Class 7 Science Chapter 8 Reproduction in Plants an important study tool for students.
Download PDF of NCERT Solutions for Class 7 Science Chapter 8: Reproduction in Plants
Solved Exercise Questions of NCERT Solutions for Class 7 Science Chapter 8 Reproduction in Plants
The solutions are given in sequence as per the NCERT textbook data:
(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 _____________.
Answer:
(a) Production of new individuals from the vegetative part of parent is called vegetative propagation .
(b) A flower may have either male or female reproductive parts. Such a flower is called unisexual flower .
(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 pollination .
(d) The fusion of male and female gametes is termed as fertilization .
(e) Seed dispersal takes place by means of wind , water, and animal .
Q2. Describe the different methods of asexual reproduction. Give examples.
Answer:
Different methods of asexual reproduction are:
(i) Fission : is division, the parent cell divides into two or more cells. Fission can be of two types, namely, binary fission and multiple fission. In binary fission, the parent cell divides into two equal halves called daughter cells. During the multiple fission, the organism divides itself into numerous daughter cells.
(ii) Fragmentation : The parent body divides into two or more fragments. Later, each fragment develops into a new individual.
(iii) Regeneration : In these organisms, when the cell divides into numerous pieces, each piece proliferates and differentiates to regenerate new organisms. For example, when a lizard loses its tail, it grows a new one.
(iv) Budding : Some organisms develop buds on their body and these buds develop into a new individual, this is known as budding.
(v) Vegetative propagation : Reproduction through their vegetative parts such as leaves, roots, buds, and stems and this is known as vegetative propagation.
Q3. Explain what you understand by sexual reproduction.
Answer:
When two parents are involved in reproduction, the method is called sexual reproduction.
During fertilization, the male and female gametes fuse to produce a zygote.
Then zygote subsequently develops into an embryo which further develops into a new individual.
Q4. State the main difference between asexual and sexual reproduction.
Answer:
The main differences between asexual and sexual reproduction are:
| S.No. | Asexual reproduction | Sexual reproduction |
| 1. | Only one parent is involved. | Two parents are required i.e., male and female |
| 2. | The offspring formed is similar to the parent. | The offspring formed shows some variation with respect to the parent. |
| 3. | For example, hydra, yeast, etc. show asexual reproduction. | For example, humans, animals, insects, etc. shows sexual reproduction. |
Q5. Sketch the reproductive parts of a flower.
Answer:
The sketch of the reproductive parts fo flower is shown below:
Q6. Explain the difference between self-pollination and cross-pollination.
Answer:
The differences between the self-pollination and the cross-pollination are:
| S.No. | Self-pollination | Cross-pollination |
| 1. | Within the same flower, the pollen grains are transferred to the stigma. | The pollen grains are transferred to the stigma of a different flower. |
| 2. | Pollinating agents are not required in this type of pollination. | Pollinating agents such as the winds, water, insects, etc. are required in this type of pollination. |
| 3. | For example, sunflower, peanuts, etc. | For example, rose, mango, etc, and most of the flowering plants. |
Q7. How does the process of fertilisation take place in flowers?
Answer:
Once the pollen grains spread on the stigma, it produces a pollen tube and this process is called the germination of pollen grains.
Then the pollen tube penetrates the style and reaches the ovary where the male nucleus is transferred through this pollen tube and finally, the fusion of male and female nuclei takes place inside the ovary. Thus, this step is called fertilization.
Q8. Describe the various ways by which seeds are dispersed.
Answer:
Seeds and fruits of plants are carried away by the wind, water, and animals.
By wind: Winged seeds such as those of drumstick and maple, light seeds of grasses or hairy seeds of aak (Madar) and hairy fruit of the sunflower, get blown off with the wind to far away places.
By water: Some seeds are dispersed by water. These fruits or seeds usually develop floating ability in the form of the spongy or fibrous outer coat as in coconut.
By animals: Some seeds are dispersed by animals, especially spiny seeds with hooks that get attached to the bodies of animals and are carried to distant places. Examples are Xanthium and Urena.
By bursting: 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.
Q9. Match items in Column I with those in Column II:
Column I Column II
(a) Bud (i) Maple
(b) Eyes (ii) Spirogyra
(c) Fragmentation (iii) Yeast
(d) Wings (iv) Bread mould
(e) Spores (v) Potato
(vi) Rose
Answer:
The matched columns are shown below:
| 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 |
Q10. Tick the correct answer: (a) The reproductive part of a plant is the
(i) leaf (ii) stem (iii) root (iv) flower
Answer:
(a) The reproductive part of a plant is the
(iv) Flower.
Q11. Tick the correct answer: (b) The process of fusion of the male and the female gametes is called
(i) fertilisation (ii) pollination (iii) reproduction (iv) seed formation
Answer:
(b) The process of fusion of the male and the female gametes is called (i) Fertilization.
Q12. Tick the correct answer:
(i) seed (ii) stamen (iii) pistil (iv) fruit
Answer:
(c) Mature ovary forms the (iv) Fruit.
Q13. Tick the correct answer:
(d) A spore-producing organism is
(i) rose (ii) bread mould (iii) potato (iv) ginger
Answer:
(d) A spore producing organism is (ii) bread mould.
Q14. Tick the correct answer:
(e) Bryophyllum can reproduce by its
(i) stem (ii) leaves (iii) roots (iv) flower
Answer:
(e) Bryophyllum can reproduce by its (ii) leaves.
NCERT Solutions for Class 7: Subject Wise
Approach to Solve NCERT Solutions for Class 7 Science Chapter 8 "Reproduction in Plants"
Start with the knowledge of the two principal methods of reproduction in plants: asexual and sexual reproduction, and their roles in plant life cycles.
- Highlight the different mechanisms of asexual reproduction including budding, fragmentation, spore production, and particularly vegetative propagation through roots, stems, and leaves.
- Observe the flower structure and function with close attention, including the functions of the male and female reproductive structures, pollination, fertilization, and seed production.
- Use diagrams to represent processes such as pollination, fertilization, and seed dispersal, which assist in responding to diagram-based and descriptive questions.
- Practice all in-text and exercise questions carefully with clear, concise answers accompanied by examples and labeled diagrams to develop excellent conceptual clarity and exam preparedness.
Also, Check NCERT Books and NCERT Syllabus here
Major Topics in Class 7 Science Chapter 8- Reproduction in Plants
Important Topics in Chapter Reproduction in Plants:
Section | Topic Name |
12 | |
12.1 | |
12.2 | |
12.3 | |
12.4 |
Important Subtopics in Chapter 8, Science Class 7
Some important subtopics are mentioned below:
Important Question on Chapter 8 Reproduction in Plants
Question: Which of the following is NOT a characteristic of wind-pollinated flowers?
Options:
Large and colourful petals
Light and dry pollen
Well-exposed stamens
Feathery stigma
Answer: Option (1) Large and colourful petals
Solution: Wind-pollinated flowers, like those of grasses, tend to have inconspicuous, non-scented, and diminutive flowers. They can do without large and showy petals as they do not need to attract a pollinator. They instead have lots of light, dry pollen and have feathery stigmas to trap pollen grains from the air.
NCERT Solutions for Class 7 Science Chapter-Wise
The chapter-wise solutions are given below:
Frequently Asked Questions (FAQs)
1. What are the two main types of reproduction in plants?
The two main types of reproduction in plants are:
- Asexual reproduction: Involves a single parent and produces offspring genetically identical to the parent.
- Sexual reproduction: Involves the fusion of male and female gametes from two parents, producing genetically different offspring.
2. What are the different modes of reproduction in plants?
Plants reproduce through sexual reproduction (involving pollination and fertilization) and asexual reproduction (including budding, fragmentation, spore formation, and vegetative propagation).
3. What is vegetative propagation? Give examples.
Vegetative propagation is a type of asexual reproduction where new plants grow from the vegetative parts like roots, stems, or leaves of the parent plant. Examples include the growth of new plants from potato tubers, runners in strawberry, and stem cuttings in rose.
4. What is pollination and what are its types?
Pollination is the transfer of pollen grains from the anther (male part) to the stigma (female part) of a flower. It can be:
Self-pollination: Pollen is transferred within the same flower or plant.
Cross-pollination: Pollen is transferred from the flower of one plant to the flower of another plant of the same species.
5. What is fertilisation in plants?
Fertilisation is the fusion of male and female gametes (pollen and ovule) to form a zygote, which eventually develops into a seed and grows into a new plant.
6. Define spore formation with an example.
Spores are reproductive cells that germinate into new organisms under favorable conditions. Example: Ferns release spores from sporangia.
7. What is vegetative propagation? Give two examples.
Vegetative propagation uses plant parts (e.g., stems, roots) to grow new plants. Examples:
Potato tubers
Onion bulbs.
8. What is sexual reproduction in plants?
It involves the fusion of male (pollen) and female (ovule) gametes, leading to seed formation.
9. Define pollination and its types.
Pollination is pollen transfer from anther to stigma. Types:
Self-pollination: Pollen lands on the same flower.
Cross-pollination: Pollen is transferred to another plant’s flower.
10. What is fertilization? How does it occur in plants?
Fertilization is the fusion of male and female gametes. In plants, pollen forms a tube to deliver sperm to the ovule, creating a zygote.
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