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NEET 2012
Exam
NEET
Year
2012
Subject
Botany
Chapter
Sexual Reproduction in Flowering Plants

NEET 2012 · Botany · Sexual Reproduction in Flowering Plants

An organic substance that can withstand environmental extremes and...

An organic substance that can withstand environmental extremes and cannot be degraded by any enzyme is

Options

  1. Acuticle
  2. Bsporopollenin
  3. Clignin
  4. Dcellulose

Correct answer

B. sporopollenin

Step-by-step solution

Sporopollenin is a fatty substance present in the exine of pollen grains. It is resistant to microbial and chemical decomposition and can withstand the extreme environmental conditions. Due to presence of sporopollenin, pollen grains are well preserved during fossilization.
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