Question

Fluid mosaic model of cell membrane states that it has a lipid bilayer with

• A. Protein on both the surface
• B. Protein on the outer surface only
• C. Protein embedded in it only
• D. Some proteins embedded and some on the surfaces

Answer 1

The correct option is D

Some proteins embedded and some on the surfaces

The correct option is (D)

Explanation of the correct option:

1. The fluid mosaic model by Singer and Nicholson explains the structure of the cell membrane.
2. It shows nature of the cell membrane is quasi- fluidic with a bilayer of lipids.
3. Here, lipid bilayer means two molecules thick along with proteins on the outer surface and also embedded within.

Thus, the fluid mosaic model of cell membrane states that it has a lipid bilayer with some proteins embedded and some on the surfaces.