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Question

Keeping in view the “fluid mosaic model” for the structure of the cell membrane, which of the following statement is correct with respect to the movement of lipids and proteins from one lipid monolayer to the other (described as flip-flop movement)?

A
Both lipids and proteins can flip flop
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B
While lipids can rarely flip flop, proteins cannot
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C
While proteins can flip flop, lipids cannot
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D
Neither lipids nor proteins can flip flop
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Solution

The correct option is B While lipids can rarely flip flop, proteins cannot

Flip flop movement is rarely found in lipid molecules, whereas it remains absent in protein molecules.


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