Question

20. Which of the following statements about sporopollenin is incorrect?
(a) Exine is made up of sporopollenin.
(b) Sporopollenin is one of the resistant organic materials
(C) Exine has apertures called germ pores where sporopollenin is present
(d) Sporopollenin can withstand high temperatures and strong acids
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Answer 1

Explanation:

third option is wrong bcoz sporopollenin is absent in germ pore

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 .