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Development of Endosperm

The exine of ...

Question

The exine of mature pollen grain is composed chiefly ____________.

A

Lipids

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B

Cellulose

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C

Pectocellulose

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D

Sporopollenin

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Solution

The correct option is D Sporopollenin
The pollen wall is a multilayered structure that includes an intine, which is composed mainly of polysaccharide, and an exine, which consists mainly of sporopollenin.
So the correct answers option D.

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D	Stalk of ovule	4	Ovule

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