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NEET2003BotanySexual Reproduction in Flowering PlantsActual

Pollen grains are able to withstand extremes of temperature and dessication because their exine is composed of

Options

  1. Acutin
  2. Bsuberin
  3. Csporopollenin
  4. Dcallose.

Correct answer

C. sporopollenin

Step-by-step solution

Exine is outer layer of pollen grain which is acetolysis resistant layer. It is also resistant to physical and biological degradation. Because of this property of exine, pollen grains are found well preserved for long periods in fossil deposits.

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