The cell membrane is also referred to as the plasma membrane or plasmalemma.
The plasma membrane is an outermost envelope-like membrane or a structure that surrounds the cell and its organelles.
It is a double membraned cell organelle, also called the phospholipid bilayer, and is present in prokaryotic and eukaryotic cells.
In all living cells, the plasma membrane functions as the boundary and is selectively permeable, by allowing the entry and exit of certain selective substances.
The plasma membrane also acts as a connecting system by providing a connection between the cell and its environment.
