Cell Membrane

Cell Membrane:

All eukaryotic and prokaryotic cells are enclosed by an elastic thin wrapper termed as plasma membrane. It is selectively permeable as it permits only certain substances to enter or leave the cell via it. In addition to this eukaryotic cells hold intracellular membranes together termed as cytoplasmic membrane system which surround the vacuole and cell organelles. Plasma membrane and sub-cellular membranes are together termed as biological membranes.

The cell membrane is principally comprised of a mix of lipids and proteins. Depending on the membrane’s position and role in the body, lipids can make up anywhere from 20 to 80 % of the membrane, with the residue being proteins. While lipids aid to provide membranes their flexibility, proteins monitor and sustain the cell's chemical climate and help in the transfer of molecules across the membrane.

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