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Reproduction in Plants Class 7 Worksheet Science Chapter 8

Q.1. True/False
(i) A spore producing organism is bread mould.
(ii) Bryophyllum can reproduce by its stem.
(iii) A bisexual flower has both the male and the female reproductive parts.
(iv) All organisms multiply or reproduce their own kind.
(v)   In plants there are three modes of reproduction.
(vi) Leaf is the reproductive part of a plant.

Q.2. Fill in the blanks.
(i) Production of new individuals from the vegetative part of parent is called ____.
(ii)  A flower may have either male or female reproductive parts. Such a flower is called ____.
(iii) 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 ____.
(iv) The fusion of male and female gametes is termed as ____.
(v)  Seed dispersal takes place by means of ____, ____ and ____.
(vi) Anther contains pollen grains which produce ____.

Q.3. What are the two modes of reproduction in plants?

Q.4. What is reproduction?

Q.5. How do potatoes reproduce?

Q.6. How does sexual reproduction take place in flowering plants?

Q.7. How the male gamete in the pollen grain reaches the female gamete present in the ovule?

Q.8. Describe the different methods of asexual reproduction. Give examples.

Q.9. What is the female reproductive part of a flower?

Q.10. What is a node?

Q.11. How fungi grow on bread?

Q.12. What is fertilisation?

Q.13. What types of seeds are dispersed by animals?

Q.14. How do plants reproduce?

Q.15. How does the process of fertilisation take place in flowers?

Q.16. What are the vegetative parts of plants?

Q.17. State the main difference between asexual and sexual reproduction.

Q.18. What is the function of flowers in plants?

Q.19. How plants such as moss and ferns reproduce?

Q.20. Explain what you understand by sexual reproduction.


You can find Worksheets Solutions here: Worksheet Solutions: Reproduction in Plants

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FAQs on Reproduction in Plants Class 7 Worksheet Science Chapter 8

1. How do plants reproduce?
Ans. Plants reproduce in two ways: through sexual reproduction and asexual reproduction. In sexual reproduction, plants produce flowers, which contain male and female reproductive organs. The pollen from the male reproductive organ (stamen) fertilizes the ovule in the female reproductive organ (pistil), leading to the formation of seeds. In asexual reproduction, plants can reproduce without the involvement of seeds or flowers, through methods such as vegetative propagation, where new plants grow from stems, roots, or leaves of the parent plant.
2. What is pollination?
Ans. Pollination is the process by which pollen grains are transferred from the male reproductive organ (stamen) to the female reproductive organ (pistil) in flowering plants. This transfer of pollen can occur through various means, such as wind, water, or by the help of animals like bees, butterflies, or birds. Once the pollen reaches the pistil, it fertilizes the ovule, leading to the formation of seeds.
3. What are the different methods of asexual reproduction in plants?
Ans. Plants can reproduce asexually through various methods. Some common methods of asexual reproduction in plants include: - Vegetative propagation: New plants grow from stems, roots, or leaves of the parent plant. Examples include runners in strawberry plants and tubers in potatoes. - Budding: A small bud grows on the parent plant and eventually detaches to form a new plant. This method is commonly seen in yeast and hydra. - Fragmentation: The parent plant breaks into fragments, and each fragment develops into a new plant. This method is observed in ferns and algae. - Spore formation: Specialized structures called spores are produced by the parent plant, which can develop into new plants. This method is seen in mosses and ferns.
4. How do wind-pollinated flowers differ from insect-pollinated flowers?
Ans. Wind-pollinated flowers and insect-pollinated flowers have certain differences in their characteristics to facilitate successful pollination. Wind-pollinated flowers: - Usually have small, inconspicuous flowers that lack bright colors or fragrance. - Produce large quantities of lightweight, dry pollen grains that can be easily carried by the wind. - Have long and feathery stigma to catch the airborne pollen. - Lack nectar or odor, as they do not rely on attracting insects for pollination. In contrast, insect-pollinated flowers: - Often have large, colorful flowers with attractive fragrances to attract insects. - Produce relatively fewer and sticky pollen grains that can adhere to the bodies of insects. - Have short and sticky stigma to ensure effective pollen transfer. - Often have nectar as a reward for the visiting insects.
5. What are the advantages of sexual reproduction in plants?
Ans. Sexual reproduction in plants offers several advantages: - Genetic variation: Sexual reproduction involves the fusion of genetic material from two parent plants, resulting in offspring that inherit a combination of traits from both parents. This genetic variation allows plants to adapt to changing environments and increases their chances of survival. - Evolution: Sexual reproduction plays a crucial role in the process of evolution. Through sexual reproduction, new combinations of genes are created, leading to the development of new traits and adaptation to different ecological niches. - Increased resistance to diseases and pests: Genetic diversity resulting from sexual reproduction can provide plants with a wider range of defenses against diseases and pests. This reduces the risk of widespread damage to a population of plants by a single disease or pest. - Better chances of survival: Sexual reproduction increases the chances of survival for plants by enhancing their ability to adapt and respond to environmental changes. This is particularly important in unpredictable or rapidly changing habitats.
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