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Outer wall/exine of pollen grain is form...

Outer wall/exine of pollen grain is formed of

A

cellulose

B

Sporopollenin

C

pectocellulose

D

lignin

Text Solution

Verified by Experts

The correct Answer is:
B
A pollen grain contains two layered cell wall, the outer exine and inner intine. Sporopollenin is found in the exine of pollen grains, which is the most resistant biological material known, of microbial and chemical decomosition.
Due to this, pollen grains are well-preserved during fosilisation. Intine of pollen pollen grain is made up of pectocellulose.
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ARIHANT NEET-SEXUAL REPRODUCTION IN FLOWERING PLANTS -MEDICAL ENTRANCE EXAMS
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  9. Stalk with which ovules remain attached to placenta is called

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