Chapter 7: Reproduction in Plants

Q&A -Ask Doubts and Get Answers

Q
Reproduction in Plants

Question:

Tick (ü) 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:

(i) seed (ii) stamen
(iii) pistil (iv) fruit

(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

Answer:

(a) Flowers are the reproductive part of plants. Most flowering plants reproduce by sexual reproduction method involving the fusion of sex cells called gametes. Flowers bear male reproductive organs (stamens) and female reproductive organs (pistil). 

Hence, the correct answer is (iv) flower.

(b) The process of fusion of male and female gamete is called fertilization. The cells which result after the fusion of gametes is called a zygote. 

Hence, the correct answer is (i) fertilisation.

(c) After fertilization, the mature ovary of the flower develops to form fruit and other parts of the flower fall off. The ovule present in the ovary grows to become a seed. 

Hence, the correct answer is (iv) fruit.

(d) In spore formation, the parent plant produces hundreds of tiny spores. These spores are released into the air and under favorable conditions; they germinate and produce new plants. Eg: Fungus and bread moulds.

Hence, the correct answer is (ii) bread mould.

(e) Vegetative propagation is a type of asexual reproduction in which new plants are produced from roots, stems, leaves, and buds. Bryophyllum is a plant that undergoes vegetative propagation by its leaves.

Hence, the correct answer is (ii) leaves.


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