Lipid Bilayer

Lipid Bilayer Definition:

The main fabric of cell membranes, assembled primarily from phosphoglycerides.

Lipid Bilayer Explained:

The plasma membrane of cells which allows and selects whether something should enter or exit is because of the formation of lipid bilayers. What makes these bilayers or phospholipids important are their two properties that are hydrophilic and hydrophobic. A molecule that has both these properties make them amphipathic.