The lipids making up a cell membrane or lipid bilayer are amphipathic, and in this lesson a section of a bilayer will be constructed using phosphotidylcholine (PC). The molecular images used in this exercise were obtained from a site developed by Angel Herráez.

Actual lipid bilayers are more complex than the one presented here, in that they are made up of more than one type of amphipathic lipid. They would contain other types of phosphoglycerolipids, glycolipids and cholesterol.

Chapter 1

Starts with a leaflet of a single layer and builds up to a section of a quasi-fluid bilayer.