Concept
Version 9
Created by Boundless
Sexual Reproduction in Angiosperms
![Embryo sac](../../../../../../../../../figures.boundless-cdn.com/19443/full/figure-32-01-07.jpg)
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.