According to fluid mosaic model, plasma membrane is composed of

Options

A. phospholipids and oligosaccharides
B. phospholipids and hemicellulose
C. phospholipids and integral proteins
D. phospholipids , extrinsic proteins and intrinsic proteins

Answer

D

Explanation

In fluid mosaic model lipid bilayer is composed of phospholipids with their polar hydrophilic ends on the outer surfaces and two non-polar hydrophobic tails of each phospholipid molecule point inwards. The globular alpha proteins do not form continuous layer but are embedded irregularly in the lipid bilayer (called integral orintrinsic proteins) or superficially attached (extrinsic or peripheral proteins).