Not to be confused with fat. In chemistry, particularly in biochemistry, a fatty acid is a carboxylic acid with a long aliphatic chain, which is either saturated or unsaturated. Most naturally occurring fatty acids have an unbranched chain of an even number of carbon atoms, from 4 chemical properties of fatty acids pdf 28.
Fatty acids are usually derived from triglycerides or phospholipids. Fatty acids are important dietary sources of fuel for animals because, when metabolized, they yield large quantities of ATP. Many cell types can use either glucose or fatty acids for this purpose.
BBB, in addition to glucose and ketone bodies. Fatty acids without double bonds are known as saturated. They differ in length as well. Fatty acid chains differ by length, often categorized as short to very long.
6 to 12 carbons, which can form medium-chain triglycerides. Unsaturated fatty acids have one or more double bonds between carbon atoms.
Pairs of carbon atoms connected by double bonds can be saturated by adding hydrogen atoms to them, converting the double bonds to single bonds. Therefore, the double bonds are called unsaturated. The two carbon atoms in the chain that are bound next to either side of the double bond can occur in a cis or trans configuration. A cis configuration means that the two hydrogen atoms adjacent to the double bond stick out on the same side of the chain.