Question

Name the organic material of which exine and intine of am amgiosperm pollen grains are made up of? explian the tole of exone

Answer 1

the exine is made up of sporopollenin which is one of the resistant substance found in nature. This helps them to stay preserved in sediments and soil.
and intine is made up of cellulose and pectin

Answer 2

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

→ 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 .