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  • Select the correct statement from the following regarding cell membrane.Option: 1 Na+ and K+ ions move across cell membrane by

Select the correct statement from the following regarding cell membrane.

Option: 1

Na+ and K+ ions move across cell membrane by passive transport


Option: 2

Proteins make up 60 to 70% of the cell membrane.


Option: 3

Lipids are arranged in a bilayer with polar heads towards the inner part.


Option: 4

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


Answers (1)

best_answer
  • In 1972, Singer and Nicolson presented the fluid mosaic model as a means of explaining the structure of the cell membrane.
  • This model proposes that cell membranes are quasi-fluid and consist of a viscous lipid bilayer containing globular proteins distributed throughout the interior of the cell and surface.

Hence, the correct statement is option 4.

Posted by

Pankaj Sanodiya

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