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Plasma membrane is a:- bilayered membrane
- trilayered membrane
- five layered membrane
- unilayered membrane
Correct Answer: (a) bilayered membrane
Explanation:
The fluid mosaic model is used to describe the structure of the plasma membrane. This model was proposed by Nicolson and Singer in 1972. This model suggests that the plasma membrane is composed of lipids and proteins primarily.
However, small amounts of carbohydrates can also be found in the plasma membrane. The proteins of the plasma membrane can be integral or peripheral membrane proteins. These proteins move through the lipid bilayer, which gives the plasma membrane a typical fluidic nature.The fluid mosaic model of the plasma membrane can be represented as follows:
Figure: Fluid mosaic model of the plasma membrane.
Updated on: 12-Jan-2023
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