In the Fluid Mosaic Model of Membrane Structure

Question

In the fluid mosaic model of membrane structure
A) Proteins form an inner layer between two layers of lipid
B) Proteins coat an inner layer of lipids
C) Proteins float in a lipid bilayer
D) Proteins are covalently bonded to the lipid bilayer
E) All of the above are true

Accepted Answer

The fluid mosaic model describes the plasma membrane of animal cells as a mosaic of components—including phospholipids, cholesterol, proteins, and carbohydrates—that gives the membrane a fluid character. Proteins are not covalently bonded to the lipid bilayer, nor do they form or coat an inner layer of lipids; instead, they float within or on the lipid bilayer, allowing the membrane to maintain fluidity and flexibility.