Question

what is the function of exine and intine in a pollen grain..??

Answer 1

Pollen grain or microspore is made up of two layers known as exine and intine. The outer layer, EXINE is made up of sporopollenin( most hardest and resistant material known till now) and is further differentiated into outer ektexine and inner endexine. Inner layer INTINE is made up of pecto-cellulose.

MARK BRAINLIEST..

Answer 2

Explanation:

$\tt\pink{\underline{Exine}}$

→ It age outer layer of pollen grain and very hard.

→ It age made up of sporopollenin in which is most resistance organic material present in nature .

→Sporopollenin is Resistance to high temperatures stronger acids and alkaline and also to enzyme .