Question

Where is sporopollenin present in plants?

Answer 1

Sporopollenin is present in exine of pollen grains in plants. It is one of the most resistant organic substances and can withstand high temperature, strong acids and alkali.

hope it helps

Answer 2

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Sporopollenin is present in the exine of pollen grains in plants. 

Its significance with reference to its chemical nature are as follows:

• It is one of the most resistant organic substance which can withstand high temperature, strong acids and alkali.

• No enzyme that degrades sporopollenin is so far known.

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