Question

Briefly explain the structure of pollen grains.

Answer 1

Structure of pollen grains:

1. The flower's male reproductive whorl, or androecium, is where male gametes are produced.
2. The androecium, which consists of an anther and a filament, is the stamen.
3. Pollen grains are created in the pollen sacs found in the anther. The male gametophyte, or pollen grain, is what houses the male gametes.
4. The two layers that surround the pollen grain are exine, which makes up the outside layer, and intine, which makes up the interior layer.
5. The two male gametes are created by dividing the generative cell.
6. The vegetative cell is in charge of supplying nourishment.
7. The pollen tube is created when the inner layer emerges from the germ hole.