Keeping in view the 'fluid mosaic model' for the structure of cell membrane, which one of the following…

Keeping in view the 'fluid mosaic model' for the structure of cell membrane, which one of the following statements is correct w.r.t. the movement of lipids and proteins from one lipid monolayer to the other (described as flip-flop movement)?
  1. Neither lipids nor proteins can flip-flop
  2. Both lipids and proteins can flip-flop
  3. While lipids can rarely flip-flop, proteins cannot
  4. While proteins can flip-flop, lipids cannot

Solution

It is exclusive property of lipids shown during changing temperature of cellular environment.

Asked in: NEET 2008 (Mains)

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