Select the correct statement from the following regarding cell...

Select the correct statement from the following regarding cell membrane.

Options

A $\mathrm{Na}^{+}$ and $\mathrm{K}^{+}$ ions move across cell membrane by passive transport
BProteins make up 60 to $70 \%$ of the cell membrane
CLipids are arranged in a bilayer with polar heads towards the inner part
DFluid mosaic model of cell membrane was proposed by Singer and Nicolson

Correct answer

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

Step-by-step solution

In 1972 , Singer and Nicolson proposed fluid mosaic model for internal structure of plasma membrane. This is most widely accepted model for plasma membrane. According to this model, a membrane consists of a continuous bilayer of phospholipid molecules in which globular proteins are embedded. The lipids are arranged in a bilayer with polar heads towards outerside.

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