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प्रश्न
Put a tick mark (✓) against the correct alternative in the following statement
Pollen is produced in the:
पर्याय
Filament
Style
Pistil
Anther
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उत्तर
Anther
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संबंधित प्रश्न
State the function of flowers in the flowering plants.
Name the male part of the flower.
Where are a plant's sex organs located?
Fill in the following blank with suitable word :
The ovary of a flower becomes ....... after fertilisation.
What changes take place in the flower after fertilisation which lead to the formation of seeds and fruit?
The length of pollen tube depends on the distance between :
(a) pollen grain and upper surface of stigma
(b) pollen grain on upper surface of stigma and ovule
(c) pollen grain in anther and upper surface of stigma
(d) upper surface of stigma and lower part of style
Write one main difference between asexual and sexual mode of reproduction. Which species is likely to have comparatively better chances of survival – the one reproducing asexually or the one reproducing sexually? Give reason to justify your answer.
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
The figure below shows the concept of double fertilization. Complete the flow chart showing the progress at each step:
