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प्रश्न
Identify A, B, C and D in the given diagram and write their names.
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उत्तर
A - Stigma
Function: It is a sticky surface where the pollen lands and later germinates.
B - Pollen tube
Function: It carries the pollen to the egg cell for fertilisation.
C - Ovary
Function: It is the female reproductive part of the flower containing ovules.
D - Egg cell
Function: It forms the zygote after fertilisation.
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संबंधित प्रश्न
A student was asked to observe and identify the various parts of an embryo of a red kidney bean seed. He identified the parts and listed them as under:
I. Tegmen
II. Testa
III. Cotyledon
IV. Radicle
V. Plumule
The correctly identified parts among these are
(A) I, II and III
(B) II, III and IV
(C) III, IV and V
(D) I, III, IV and V
How do the insects help in cross-pollination?
Give some examples of different modes of fertilisation in nature?
What is meant by 'unisexual flowers' and 'bisexual flowers'? Give two examples of each.
Fill in the blank:
Seeds are formed from________.
Draw a diagram of the longitudinal section of a flower and label the following parts.
__________ is present in unisexual flower.
What does germination mean?
Sperm and egg nuclei fuse due to ______.
Double fertilization is essential for formation of ______.
