Assertion :Fluid mosaic model was proposed by Singer and Nicolson. Reason: The 'mosaic' is intricate composite of protein and lipids of the membrane.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.

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Assertion is correct but Reason is incorrect.

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Assertion is incorrect but Reason is correct.

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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
Fluid mosaic model of the plasma membrane was proposed by Singer and Nicolson. According to the theory, the plasma membrane is a lipid bilayer in which the proteins, cholesterol and carbohydrates are incorporated which give it a mosaic-like an appearance. Hence, the correct answer is option B.

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