Question

Select the correct statement from the following regarding cell membrane.

(1) Lipids are arranged in bilayer with polar heads towards the inner part.

(2) Fluid mosaic model of cell membrane was proposed by Singer and Nicolson.

(3) Na+ and K+ ions move across cell membrane by passive transport.

(4) Proteins make up 60–70% of the cell membrane.

Answer 1

The fluid mosaic model of cell membrane was proposed by *. Jonathan Singer and Garth Nicolson (1972) and is the most acceptable one describing the membrane architecture.

Hence, the correct option is (2).