In angiosperms female gametophyte is called embryo sac. Embryo sac consists of three parts i.e., Egg apparatus, Antipodals and Central cell.
Egg Apparatus : The three cells towards the anterior side are together called Egg apparatus. The middle big cell is called egg cell which acts as a female gamete. The two cells present on either side of the egg cell are called synergids.
Role of Synergids: Synergids contain finger like projections called filiform apparatus, which help in absorption and conduction of food materials from nucellus into the embryo sac. They also help in directing the movement of pollen tube towards the embryo sac
Antipodals : The three cells present towards posterior side are called antipodals.
Central cell: Central cell is the largest cell with central vacuole and two polar nuclei.
