Question

What is the shape of the pollen grains?

Answer 1

Pollen grains:

1. A pollen grain is a small collection of microspores that help in fertilization and sexual reproduction in plants.
2. The intine is an inner layer of the pollen grain, consisting primarily of cellulose and pectins, and is mainly involved in the maturation of the pollen grain and pollen tube germination.
3. Pollen grains come in different shapes, sizes, and surface markings characteristic of the species.
4. Most of them are spherical.
5. Pollen grains of pines, firs, and spruces are wing-shaped.