Vmzinc Membrane The cell membrane also known as the plasma membrane pm or cytoplasmic membrane and historically referred to as the plasmalemma is a biological membrane that separates the interior of all cells from the outside environment the extracellular space which protects the cell from its environment

Biological membranes consist of a continuous double layer of lipid molecules in which membrane membrane proteins vary widely in structure and in the way they associate with the lipid bilayer which