Cell Membrane Definition And Function. The cell membrane, also called the plasma membrane, is a thin layer that surrounds the cytoplasm of all prokaryotic and eukaryotic cells, including plant and animal cells. A semipermeable limiting layer of cell protoplasm consisting of a fluid phospholipid bilayer with intercalated proteins :
The cell membrane separates the cell from the surrounding interstitial fluid, the main component of the extracellular fluid. It is also simply called the cell membrane.the main function of the plasma membrane is to protect the cell from its surrounding environment. The cell membrane, also called the plasma membrane, is a thin layer that surrounds the cytoplasm of all prokaryotic and eukaryotic cells, including plant and animal cells.
It is the outermost covering of animal cells.
The cell membrane consists of a lipid bilayer that is semipermeable. In plant cells, the membrane encapsulates the protoplasm. The basic function of the cell membrane is to protect the cell from its surroundings. The main functions of the cell membrane are.