NEET Biology question

Statement 1 (Assertion): The axoplasm inside the axon contains high concentration of K+ and negatively charged proteins. Statement 2 (Reason): The axonal membrane is impermeable to Na+ and negatively charged proteins.

(A)Assertion is True, Reason is True; Reason is correct explanation for AssertionCorrect
(B)Assertion is True, Reason is True; Reason is not correct explanation for Assertion
(C)Assertion is True, Reason is False
(D)Assertion is False, Reason is True

Answer: (A)

Solution

It is true that the axoplasm has a high K+ and negatively charged protein concentration, and this is maintained precisely because the resting axonal membrane is (nearly)

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Question ID VK-117648