NEET · BiologyMedium
Which of the following statements regarding the fluid mosaic model of the plasma membrane is correct?
- A.The lipid bilayer is static and does not allow lateral movement of proteins.
- B.Peripheral proteins are embedded within the hydrophobic core of the lipid bilayer.
- C.The quasi-fluid nature of lipids enables lateral movement of proteins within the membrane.
- D.Carbohydrate chains are primarily located on the cytoplasmic face of the membrane.
Show correct answer & step-by-step solution
Correct answer: C — The quasi-fluid nature of lipids enables lateral movement of proteins within the membrane.
Solution
- The fluid mosaic model proposes that the plasma membrane is a fluid lipid bilayer.
- Lipids provide a fluid environment that allows for the lateral diffusion of integral membrane proteins.
- Peripheral proteins are attached to the surface, not embedded in the core.
- Carbohydrate chains are found on the extracellular surface, not the cytoplasmic face.
- Hence the answer is (C).
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