Chemical analysis indicates that the cell membrane is composed mainly of: lipids and proteins.
All cell membranes are made up of lipids and proteins.
Lipids are organized in two closely adjoining sheets that make up a lipid bilayer.
This bilayer provides the basic structure of the membrane and acts as a permeability barrier (impermeable) for most water-soluble molecules.
Proteins carry out most of the other membrane functions and confer individual characteristics on different membranes.
Therefore, we can conclude that the cell membrane is made up of lipids and proteins, which are properly grouped inside and each fulfills a specific function.
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