Asymmetry in Plasma Membranes
The exterior surface of the plasma membrane is not identical to the interior surface of the same membrane.
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"OpenStax College, Passive Transport. October 16, 2013."
http://cnx.org/content/m44417/latest/Figure_05_02_01.jpg
OpenStax CNX
CC BY 3.0.
