The flask-shaped organ A at the centre of a flower is surrounded by a number of little stalks B having swollen tops which lie just inside the ring of petals.
(a) Name A. What are the various parts of A?
(b) Which part of A contains gametes?
(c) Name B. What is the swollen top of B known as?
(d) What does the swollen top of B contain?
(e) Out of A and B, which one is (i) male part, and (ii) female part of the flower?

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Solution

(a) A represents the carpel. The carpel is composed of the stigma, style and ovary.

(b) The ovary contains gametes in the form of ovules.

(c) B represents the stamen. The swollen tip of the stamen is the anther.

(d) The anther has pollen grains.

(e) The stamen (B) is a male part and the carpel (A) is a female part.

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Question 19

Fill in the blanks with the terms that are listed below. [anther, male, ovary, ovule, petals, pistil, stamen, filament].

Sepals,.....(a) ......, stamens and ... (b).... are the parts of a flower. Stamen is made up of ...(c) .... and .... (d)... and it represents the ....(e)... part of the flower. The female part of the flower is called the ...(f) ....The basal, swollen part of the pistil is called the .....(g).... which contains the ...(h)...

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