Draw the diagram of a mature embryo sac and show its 8-nucleate, 7-celled nature. Show the following parts: antipodals, synergids, egg, central cell, polar nuclei.
A mature embryo sac in a flowering plant typically consists of seven cells and eight nuclei.
Egg Apparatus: Comprises one egg cell and two synergids. Synergids: Facilitate the release of male gametes into one of them.
Antipodal Cells: Three cells located at the chalazal end, which degenerate after fertilization.
Central Polar Nuclei: Two nuclei remain free until fertilization. Upon fusion with a male gamete, they form the triploid Primary Endosperm Nucleus (PEN).