One function of proteins in the cell membrane is to form ion channels that allow the selective entry of ions during the action potential. most important they control the movement of substances through the membrane
There are 3 main ways that membrane proteins function. This ways are to offer protection to the cell, regulate materials that come in an out of the cell and provide energy for various cellular processes.
It consists of a lipid bilayer with embedded proteins. The basic function of the cell membrane is to protect the cell from its surroundings. The cell membrane controls the movement of substances in and out of cells and organelles.
Peripheral proteins can be found on either side of the lipid bilayer: inside the cell or outside the cell. Membrane proteins can function as enzymes to speed up chemical reactions, act as receptors for specific molecules, or transport materials across the cell membrane.