Answer:
The answer is Proteins are embedded in the fluid bilayer of lipids.
Explanation:
Fluid mosaic model is a structure suggested for biological membranes consisting of a lipid bilayer formed by phospholipids, whose apolar heads are outward and their apolar tails facing each other, and a series of membrane proteins that can spread laterally into the bilayer. The fluid mosaic model describes the cell membrane as a tapestry of several types of molecules that are in constant motion which helps the cell membrane to maintain its barrier role between the inner and outer environment of the cell.
