Question

What Is Meant by Embryo Sac?

Answer 1

Embryo sac:

1. The embryo sac is the female gametophyte of angiosperms.
2. It is formed by the functional megaspore produced from the megaspore mother cells.
3. The mature embryo sac of angiosperms is 7-celled and 8 nucleate.
4. It contains:

• Egg apparatus: three cells at micropyle end : two synergids, and one egg cell
• Antipodals: three cells at the chalazal end
• Large central cell: contains 2 polar nuclei