MEDICAL PHYSIOLOGY

Detailed explanation-1: -Phospholipids (PL) are a group of polar lipids that consist of two fatty acids, a glycerol unit and a phosphate group which is esterified to an organic molecule (X) such as choline, ethanolamine, inositol, etc.

Detailed explanation-2: -Phospholipids contain glycerol, fatty acids, phosphate, and, with such exceptions as phosphatidylglycerol and phosphatidylinositol, a nitrogenous component. Lecithin, for example, is made up of glycerol, two fatty acids (one saturated, usually), phosphate, and choline.

Detailed explanation-3: -Key Term: Phospholipid A phospholipid is a type of lipid that consists of a glycerol molecule attached to two fatty acids and a phosphate group. Phospholipids are the main components of cell membranes. Figure 7: A phospholipid is composed of a glycerol molecule, a phosphate group, and two fatty acid chains.

Detailed explanation-4: -Triglycerides are tri-esters consisting of a glycerol bound to three fatty acid molecules. Triglycerides are the main constituents of vegetable fat and body fat in humans and other animals.