Thickness of plasma membrane is

Options

A. `10 Å` to `30 Å`
B. `30 Å` to `50 Å`
C. `50 Å` to `70 Å`
D. `70 Å` to `100 Å`

Answer

D

Explanation

Thickness of the plasma membrane is studied by Robertson under an electron microscope. According to this plasma membrane is `75Å` thick in which lipid bilayer is `35Å` thick and each protein layer is `20Å` thick.