What are the 3 functions of the cell membrane quizlet?
- 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 are the 3 main components of the plasma membrane?
Image modified from OpenStax Biology. 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 is the structure and function of the plasma membrane?
Structure of Plasma Membranes The primary function of the plasma membrane is to protect the cell from its surroundings. Composed of a phospholipid bilayer with embedded proteins, the plasma membrane is selectively permeable to ions and organic molecules and regulates the movement of substances in and out of cells.