What is one major roll of fats in the cell membrane?

The cell membranes are made up of three factors- phospholipids, glycolipids, and cholesterol, all three of which are vital for proper human function. Phospholipids, or fats, are the largest of the three, have polar heads and nonpolar tails, and work in conjunction to regulate the transfer of nutrients across the membrane. In addition, lipids defend and define cellular border's.