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    Question

    Which model describes the structure of the cell membrane

    as a dynamic and flexible structure, allowing proteins to move laterally within the lipid bilayer?
    A Lock-and-Key Model Correct Answer Incorrect Answer
    B Fluid Mosaic Model Correct Answer Incorrect Answer
    C Transport chain Model Correct Answer Incorrect Answer
    D Static Structure Model Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    The fluid mosaic model, proposed by Singer and Nicolson in 1972, describes the cell membrane as a dynamic and flexible structure. According to this model, the membrane is composed of a lipid bilayer primarily made up of phospholipids, with proteins interspersed throughout the lipid bilayer.

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