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 respects. In this regard, which of the following statements are incorrect ?

Question

Proteins in cell membranes can travel within the lipid bilayer

Proteins can also undergo flip-flop movements in the lipid bilayer

Proteins can remain confined within certain domains of the membranes

Many proteins remain completely embedded within the lipid bilayer

Solution

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