What is called pollen sac?

A pollen sac is a cavity within the anther of a flower's male reproductive system where pollen grains are produced.

Understanding Pollen Sacs

The pollen sac plays a crucial role in plant reproduction. Here's a breakdown of its function and characteristics:

• Location: Pollen sacs are found within the anther, which is part of the stamen (the male reproductive organ of a flower).

• Function: According to provided references, pollen sacs are "cavities in the male reproductive system, anther, which produce pollen grains." They contain microspore mother cells.

• Pollen Formation:

  1. Microspore Mother Cells: The pollen sacs house microspore mother cells.
  2. Meiosis: These cells undergo meiosis (a type of cell division) to produce four haploid microspores.
  3. Pollen Grain Development: Each microspore then develops into a pollen grain.

In essence, the pollen sac is the factory where pollen grains, essential for plant fertilization, are manufactured.