CBSE Class 10 Science 2022 · Paper 31/3/3 · Question 5
(a) In the given diagram, name the parts where
- (i)pollen grains are produced, and
- (ii)pollen grains are transferred. (b) What happens to ovule and ovary after fertilisation ?
Answer
Pollen is made in the anthers (D) and transferred to the stigma (A); the ovule becomes the seed and the ovary the fruit.
(a) (i) Pollen grains are produced in D, the anthers of the stamens. (ii) Pollen grains are transferred to A, the stigma at the tip of the carpel; this transfer from anther to stigma is pollination.
(b) After fertilisation the ovule develops into the seed: the zygote inside it divides to form the embryo, and the ovule develops a tough coat. The ovary grows rapidly and ripens to form the fruit, which encloses the seeds.
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