Concept
Version 9
Created by Boundless
Lipid Molecules
Fatty Acids
Saturated fatty acids have hydrocarbon chains connected by single bonds only. Unsaturated fatty acids have one or more double bonds. Each double bond may be in a cis or trans configuration. In the cis configuration, both hydrogens are on the same side of the hydrocarbon chain. In the trans configuration, the hydrogens are on opposite sides. A cis double bond causes a kink in the chain.
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"OpenStax College, Lipids. October 16, 2013."
http://cnx.org/content/m44401/latest/Figure_03_03_05.jpg
OpenStax CNX
CC BY 3.0.