Worksheets With Solutions: Reproduction in Plants Class 7 Worksheet Science Chapter 8

Section A: Multiple Choice Questions

Correct Answer is Option (c)
Budding, fragmentation, and cutting are all methods of asexual reproduction in plants, but grafting involves joining different plant parts together to create a new plant.

Q.2. Which type of reproduction involves the fusion of male and female gametes?
(a) Asexual reproduction
(b) Vegetative reproduction
(c) Sexual reproduction
(d) None of the above

Correct Answer is Option (c)
Sexual reproduction involves the fusion of male and female gametes to form a zygote, which develops into a new organism with a unique combination of genetic material.

Q.3. Which part of the plant is responsible for sexual reproduction?
(a) Roots
(b) Stems
(c) Leaves
(d) Flowers

Correct Answer is Option (d)
Flowers contain male and female reproductive structures, including stamens (which produce pollen) and pistils (which contain the ovules).

Q.4. Which of the following is not a natural method of reproduction in plants?
(a) Self-pollination
(b) Wind pollination
(c) Animal pollination
(d) Artificial pollination

Correct Answer is Option (d)

Self-pollination, wind pollination, and animal pollination are all natural methods of plant reproduction, but artificial pollination involves human intervention.

Q.5. Which type of underground stem is responsible for the production of new plants?
(a) Rhizomes
(b) Bulbs
(c) Tubers
(d) Corms

Correct Answer is Option (a)
Rhizomes are horizontal underground stems that produce new shoots and roots, allowing plants to spread and form clonal colonies. Bulbs, tubers, and corms are also types of underground stems, but they have different functions.

Section B: Short Questions

Asexual reproduction in plants is the reproduction that occurs without the involvement of gametes. Example: Fragmentation in Spirogyra.

Q.2. What is vegetative reproduction? Give an example.

Vegetative reproduction is the reproduction that occurs through the vegetative parts of the plant. Example: Cutting in Rose.

Q.3. What is pollination? How does it occur in plants?

Pollination is the transfer of pollen grains from the anther to the stigma of a flower. It occurs through various agents like wind, animals, and insects.

Q.4. What is fertilization? Where does it occur in plants?

Fertilization is the fusion of male and female gametes to form a zygote. It occurs in the ovule of the flower.

Q.5. What is the difference between self-pollination and cross-pollination?

Self-pollination occurs when the pollen grains from the anther reach the stigma of the same flower or another flower on the same plant. Cross-pollination occurs when the pollen grains from the anther reach the stigma of a different flower on another plant.

Section C: Fill in the blanks

Asexual reproduction in plants involves the production of new plants without the involvement of sex cells.

Asexual reproduction is the process of producing new plants without the involvement of sex cells. It is a method used by many plants to increase their numbers quickly and efficiently.

Q.2. In vegetative reproduction, new plants are produced from the vegetative parts of the plant such as __________ and leaves.

In vegetative reproduction, new plants are produced from the vegetative parts of the plant such as stems and leaves.
Vegetative reproduction is a type of asexual reproduction in plants where new plants are produced from the vegetative parts of the plant such as stems, roots, or leaves.

Q.3. Sexual reproduction in plants involves the fusion of male and female __________.

Sexual reproduction in plants involves the fusion of male and female gametes.
Sexual reproduction is a process by which male and female gametes are fused to form a zygote. The zygote then develops into a new plant.

Q.4. Pollination is the transfer of pollen from the male reproductive part of a flower to the __________ reproductive part of a flower.

Pollination is the transfer of pollen from the male reproductive part of a flower to the female reproductive part of a flower.
Pollination is the process by which pollen from the male reproductive part of a flower is transferred to the female reproductive part of a flower. This process is essential for sexual reproduction in plants.

Q.5. Seed dispersal is the process by which seeds are scattered away from the __________ plant.

Seed dispersal is the process by which seeds are scattered away from the parent plant.
Seed dispersal is the process by which seeds are scattered away from the parent plant. This process helps in the propagation of new plants.

Section D: Match the column

1. Rhizomes are horizontal underground stems that grow horizontally and produce new shoots and roots. Ginger is an example of rhizomes.
2. Bulbs are underground storage organs containing food for the plant. Onion is an example of bulbs.
3. Tubers are modified stems that store food for the plant. Potato is an example of tubers.
4. Corms are swollen underground stems that store food for the plant. Turmeric is an example of corms.

Section E: True or False

False
In asexual reproduction, new plants are produced from vegetative parts of the plant such as stems, roots, or leaves. Seeds are not involved in asexual reproduction.

Q.2. Fertilization is the process by which the ovule develops into a fruit.

False
Fertilization is the process by which the male and female gametes are fused to form a zygote. The zygote then develops into an embryo, which grows into a new plant. The ovule develops into a seed, and the ovary develops into a fruit.

Q.3. Flowers are the reproductive structures of plants.

True
Flowers are the reproductive structures of plants. They contain both male and female reproductive parts and are involved in the process of sexual reproduction.

Q.4. Germination is the process by which a seed develops into a new plant.

True

Germination is the process by which a seed develops into a new plant. The process involves the sprouting of a seed and the growth of a new plant from it.

Q.5. Reproduction through roots is a type of asexual reproduction in plants.

True
Reproduction through roots is a type of asexual reproduction in plants. In this process, new plants are produced from the adventitious roots of the parent plant.