What is the function of cholesterol in the cell membrane?

Cholesterol is an essential component of the cell membrane, playing a crucial role in maintaining its structure and integrity. It helps regulate the fluidity and permeability of the membrane by interacting with the phospholipid molecules that make up the bilayer.

Cholesterol also plays a role in the organization of membrane proteins, helping to stabilize their conformation and function. It can also act as a precursor for the synthesis of steroid hormones, bile acids, and vitamin D.

Overall, cholesterol helps to ensure the proper functioning of the cell membrane, creating a stable and dynamic environment for the various cellular processes that take place within the cell.