Cell membranes are made up of a phospholipid bilayer. These phospholipids are derived from atriglycerol with two of its hydroxyl groups replaced by fatty acids and the third hydroxyl groups is replaced by a phosphate derivative. The resulting amphipathic character of these phospholipids give it the capacity of forming the bilayer that can interact with the aqueous environment in and out of the cell but at the same time, can hold nonpolar constituents of the cell membrane.
Which of the following lipids would not be found in cell membranes?
B. free fatty acids
D. All of the above are components of cell membranes
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