The formation of biological membranes is based on the properties of lipids and all cell membranes share a common. Functions energy utilization steroid hormone production bile acid production lipid deposition. Plasma Membrane Cholesterol Symptoms Cholesterol Remedies Cholesterol Medications The membrane of an unstimulated neuron is polarizedthat is there is a difference in electrical charge between the outside and inside of the membrane. . Cholesterol molecules are selectively dispersed between membrane phospholipids. In addition to the phospholipids the plasma membranes of animal cells contain glycolipids and cholesterolThe glycolipids are found exclusively in the outer leaflet of the plasma membrane with their carbohydrate portions exposed on the cell surface. Regulation of HMGR activity is the primary means for controlling the level of cholesterol biosynthesis. The cell membrane also provides some structural support for