Question

Q. 5. Name the chemical substance present in exine and intine of
pollen grain. Draw a diagram of pollen grain and label
following parts.
) Exine
i) intine
Gi) Vegetative cell
GV) Germinal cell.
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Answer 1

Explanation:

Answer

The intine, or inner layer, consists primarily of cellulose and pectins. The exine, or outer layer, is composed of a highly decay-resistant chemical called sporopollenin.