Membrane that surrounds a cell and controls the movement of substances
Composition:
Biological molecules, lipids and proteins. Mechanisms of incorporation:• Exocytosis• Endocytosis• Tubular structures• Exchange between lipids and aqueous phases.
Lipids:
Amphipathic lipids:
• Phospholipids• Glycolipids• Cholesterols
Phospholipids
A major component of a cell membrane.
They have a carbohydrate attached. They provide energy.
Glycolipids
Cholesterol Cholesterol is the principal sterol synthesized bye animals. Structural component.
Proteins
• Proteins in the membrane: integral and peripheral. • Transmembrane proteins.