Cell Cycle and Cell DivisionHard

Question

According to widely accepted ″fluid mosaic model″ cell membranes are semi-fluid, where lipids and integral proteins can diffuse randomly. In recent years, this model has been modified in several respecys. In this regard, which of the following statements is incorrect ?

Options

A.Proteins in cell membranes can travel within the lipid bilayer
B.Proteins can also undergo flip-flop movements in the lipid bilayer
C.Proteins can remain confined within certain domains of the membrane
D.Many proteins remain completely embedded within the lipid bilayer

Solution

flip-flop or transmembrane movement is due to migration of lipid molecules from one lipid monolayer to other monolayer of lipid bilayer.

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