Multiple choice

Which of the following options is wrong?

  1. Pollen grains remain viable for several months because their outer covering is made of sporopollenin. The exine is composed of sporopollenin, which is derived from carotenoids by oxidative polymerization.

  2. No enzyme can degrade sporopollenin.

  3. Pollen grains are well represented in fossil strata due to sporopollenin.

  4. Pollen wall has cavities containing proteins.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This is an incorrect option as pollen wall does not have cavities containing proteins.

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