(i) Name the part marked 'A' in the diagram.
(ii) How does 'A' reaches part 'B'?
(iii) State the importance of the part 'C'.
(iv) What happens to the part marked 'D' after fertilisation is over?

Solution

i) A - pollen/pollen grain
ii) The pollen (A) reaches the Stigma (B) by the process of pollination. The agents of pollination such as wind, water, insects carry the pollen grains from the anther to the stigma.
iii) Pollen tube (C) helps male gamete to reach egg (ovule).
iv) D - Egg forms the zygote on combining with the sperm by the process of fertilisation.

Some More Questions From Our Environment Chapter

Why is variation beneficial to the species but not necessarily for the individual?

Name the methods of asexual reproduction.

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Our Environment

(i) Name the part marked 'A' in the diagram.
(ii) How does 'A' reaches part 'B'?
(iii) State the importance of the part 'C'.
(iv) What happens to the part marked 'D' after fertilisation is over?

Some More Questions From Our Environment Chapter

Why is variation beneficial to the species but not necessarily for the individual?

Name the methods of asexual reproduction.

Name two organisms which reproduce by (a) budding (6) fragmentation and (c) spore formation.

Why cannot all multicellular organisms divide cell-by-cell like Spirogyra?

How is the problem of dobling of the amount of DNA solved ?

Write names of five plants in which stem is used to produce a new plant.

Give one example of plant which uses leaves for propagation. Draw propagation organ.

List four methods of vegetative propagation which are exploited by man in propagating plants in garden and nurseries.

Write five names of plants which are usually propagated by cutting method.

Name a ornamental plant which is grown by the vegetaive propagation of stem.

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NCERT Sample Papers

Entrance Exams Preparation

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Our Environment

(i) Name the part marked 'A' in the diagram. (ii) How does 'A' reaches part 'B'?(iii) State the importance of the part 'C'. (iv) What happens to the part marked 'D' after fertilisation is over?

Some More Questions From Our Environment Chapter

Why is variation beneficial to the species but not necessarily for the individual?

Name the methods of asexual reproduction.

Name two organisms which reproduce by (a) budding (6) fragmentation and (c) spore formation.

Why cannot all multicellular organisms divide cell-by-cell like Spirogyra?

How is the problem of dobling of the amount of DNA solved ?

Write names of five plants in which stem is used to produce a new plant.

Give one example of plant which uses leaves for propagation. Draw propagation organ.

List four methods of vegetative propagation which are exploited by man in propagating plants in garden and nurseries.

Write five names of plants which are usually propagated by cutting method.

Name a ornamental plant which is grown by the vegetaive propagation of stem.

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

(i) Name the part marked 'A' in the diagram.
(ii) How does 'A' reaches part 'B'?
(iii) State the importance of the part 'C'.
(iv) What happens to the part marked 'D' after fertilisation is over?