Question

Which of the following is not a function of pollen grains?

• A.
  Sexual reproduction
• B.
  Food supplement
• C.
  Increase in performance of athletes and race horses
• D.
  Nourishment of anther

Answer 1

The correct option is D

Nourishment of anther
Sexual reproduction in the flower- Male gametes are found in pollen grains and produced in the anthers of the flower. Female gametes are found in ovules and produced in the ovary of the flower.

Pollen grains are rich in nutrients. It has become a fashion in recent years to use pollen tablets as food supplements.

Pollen consumption has been claimed to increase the performance of athletes and race horses.

Tapetum is the inner most layer of anther wall and is generally comprised only a single layer of nutritive cells. It provides nourishment to the developing pollen grains.
So, the correct answer is' nourishment of anther'.