Sporopollenin, a chemical substance is found in___

intine of pollen grain

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exine of pollen grain

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endothecium of anther

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tapetum of anther

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Solution

The correct option is B exine of pollen grain
The wall of pollen grain is made up of two layers, the outer exine and inner intine. Intine is pecto-cellulosic in nature and contains enzymatic proteins. Exine is made of a highly resistant fatty substance called sporopollenin and enzymes and proteins for compatibility reactions.

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