chain length, saturation, shape
Explanation: Triglycerides are classified by their:length of their fatty acid chainssaturation of their fatty acid chainsnumber of double bonds in their fatty acid chainsTriglycerides are classified by the length of their fatty acid chains. The most common triglycerides have fatty acid chains that are 16 or 18 carbons long. These triglycerides are called palmitic acid and stearic acid, respectively. Triglycerides with longer fatty acid chains are called long-chain triglycerides (LCTs), while those with shorter fatty acid chains are called short-chain triglycerides (SCTs).The saturation of a triglyceride's fatty acid chains refers to the number of hydrogens bonded to the carbons in the chain. Saturated fatty acids have no double bonds between carbons, while unsaturated fatty acids have at least one double bond. The most common saturated fatty acids are palmitic acid and stearic acid, while the most common unsaturated fatty acids are oleic acid and linoleic acid.The number of double bonds in a triglyceride's fatty acid chains also affects its classification. Monounsaturated fatty acids have one double bond, while polyunsaturated fatty acids have two or more double bonds. The most common monounsaturated fatty acid is oleic acid, while the most common polyunsaturated fatty acids are linoleic acid and linolenic acid.