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Sexual Reproduction in Flowering Plants question

2012 · Q14
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Sexual Reproduction in Flowering Plants question

2012 · Q14

NEETBiologySexual Reproduction in Flowering PlantsMCQ+4 / −1
An organic substance that can withstand environmental extremes and cannot be degraded by any enzyme is
  1. A
    cuticle
  2. B
    sporopollenin
  3. C
    lignin
  4. D
    cellulose.
View written solutionFree

Correct answer: B

Sporopollenin is a major component of the tough outer (exine) walls of spores and pollen grains. It is chemically very stable and is usually well preserved in soils and sediments. It can withstand environmental extremes and cannot be degraded by enzymes and strong chemical reagents.

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