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प्रश्न
Name the parts labelled as A, B, C and D in the diagram given below:-
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उत्तर
A - Pollen grain
B - Pollen tube
C - Ovary
D - Female germ cell
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संबंधित प्रश्न
You are asked by your teacher to study the different parts of an embryo of a gram seed. Given below are the steps to be followed for the experiment:
I. Soak the gram seeds in plain water and keep them overnight.
II. Cut open a soaked seed and observe its different parts.
III. Take some dry gram seeds in a petri dish.
IV. Drain the excess water.
V. Cover the soaked seeds with a wet cotton cloth and leave them for a day.
The correct sequence of these steps is :
(A) III, I, V, IV, II
(B) III, I, II, IV, V
(C) III, IV, V, I, II
(D) III, I, IV, V, II
Name the part made up of the stigma, style and ovary.
What is the function of a flower?
Explain the term 'fertilisation'.
In a bisexual flower, inspite of the young stamens being removed artificially, the flower produces fruit. Explain.
You have to perform the experiment, "To identify the different parts of an embryo of a gram seed." Describe the procedure that you would follow.
The students of a class were asked by the teacher to study the different parts of an embryo of an angiosperm. Given below are the essential steps for the experiment :
A. Soak the seeds in plain water and keep them overnight.
B. Cut open the soaked seed and observe its different parts.
C. Take some healthy seeds in a petri-dish.
D. Drain the excess water, cover the seeds with a wet cotton cloth and leave them as it is for a day.
The correct sequence of these steps is
(a) C, A, D, B
(b) C, D, A, B
(c) A, C, D, B
(d) A, C, B, D
Pollen grains from anther are transferred to the stigma.
Antipodal cells are present towards the ______ in an anatropous ovule.
Conidia are formed endogenously while zoospores are formed endogenously.
