The latest model of cell membrane is the

Options

A. Unit membrane model
B. Fluid mosaic model
C. Danielli and Davson's model
D. Robertson's model.

Answer

B

Explanation

Fluid mosaic model is the most recent and widely accepted model of a biomembrane which was proposed by singer and Nicolson in 1972. Fluid mosaic model describes cell membrane as quasifluid, i.e., 'protein icebergs in a sea of lipids'. According to this model, there is bilayer of lipid molecules (phospholipid) with globular protein molecules (2 types - integral and peripheral) adn sterols which are arranged in different manner in different regions of the plasma membrane.