What is cell membrane What are its functions?

The cell membrane (plasma membrane) is a thin semi-permeable membrane that surrounds the cytoplasm of a cell. Its function is to protect the integrity of the interior of the cell by allowing certain substances into the cell while keeping other substances out.

What are the 2 most important parts of the cell membrane?

The principal components of the plasma membrane are lipids (phospholipids and cholesterol), proteins, and carbohydrate groups that are attached to some of the lipids and proteins. A phospholipid is a lipid made of glycerol, two fatty acid tails, and a phosphate-linked head group.

What are the two functions of membrane protein?

Membrane proteins serve a range of important functions that helps cells to communicate, maintain their shape, carry out changes triggered by chemical messengers, and transport and share material.

What are the 5 functions of the cell membrane?

Terms in this set (5)

• protects the cell by acting as a barrier.
• regulates the transport of substances in and out of the cell.
• receives chemical messengers from other cell.
• acts as a receptor.
• cell mobility, secretions, and absorptions of substances.

What is the most important function of cell membrane?

The most important function of the cell membrane is to maintain cellular integrity and transport of molecules inside and outside the cell.