Concept
Version 9
Created by Boundless
Sexual Reproduction in Angiosperms
Embryo sac
As shown in this diagram of the embryo sac in angiosperms, the ovule is covered by integuments and has an opening called a micropyle. Inside the embryo sac are three antipodal cells, two synergids, a central cell, and the egg cell.
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"OpenStax College, Reproductive Development and Structure. October 17, 2013."
http://cnx.org/content/m44722/latest/Figure_32_01_07.png
OpenStax CNX
CC BY 3.0.