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Cell the Unit of Life question

2005 · Q59
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Cell the Unit of Life question

2005 · Q59

NEETBiologyCell the Unit of LifeMCQ+4 / −1
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 ?
  1. A
    Proteins in cell membranes can travel within the lipid bilayer
  2. B
    Proteins can also undergo flip-flop movements in the lipid bilayer
  3. C
    Proteins can remain confined within certain domains of the membranes
  4. D
    Many proteins remain completely embedded within the lipid bilayer
View written solutionFree

Correct answer: B

Flip-Flop movement is due to migration of lipid molecules from one lipid monolayer to other monolayer of lipid bilayer.

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