Concept
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Facilitated transport
Channel Proteins in Facilitated Transport
Facilitated transport moves substances down their concentration gradients. They may cross the plasma membrane with the aid of channel proteins.
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_04.jpg
OpenStax CNX
CC BY 3.0.