State two functions of proteins in cell membranes.

Hi Kiana,

Firstly one of the most major uses of proteins within cell membranes would be how they help facilitate active or passive movement of molecules through the membrane. The proteins I'm referring to would be channel and carrier proteins.

Another use of proteins in cell membranes would be maintaining rigidity and membrane structure, this is attributed to cholesterol ( a lipoprotein ). Cholesterol causes the phospholipids to be packed more tightly around it, thus leading to greater membrane strength.

Hope this managed to help you out,

Kian.

Two functions of proteins include maintaining stability and shape as well as assisting in cell to cell communication.