NEET Biology question

In the resting state of the neural membrane, diffusion due to concentration gradients, if allowed would drive

(A)K+ into the cell
(B)K+ and Na+ out of the cell
(C)Na+ into the cellCorrect
(D)Na+ out of the cell

Answer: (C)

Solution

In the resting nerve fibre, the axoplasm inside the axon has a high concentration of K+ and a low concentration of Na+ compared to the fluid outside, so if

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Question ID VK-117318