In Chapter 13 on the biochemistry of lipids, we will study the three long-chain unsatura...

In Chapter 13 on the biochemistry of lipids, we will study the three long-chain unsaturated carboxylic acids shown below. Each has 18 carbons and is a component of animal fats, vegetable oils, and biological membranes. Because they consist of a carboxylic acid group on one end and a fatty hydrocarbon chain on the other, they are called fatty acids.