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 cell
(d) Na⁺ out of the cell

Answer 1

Answer:

k+and Na+out of the cell

Explanation:

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Answer 2

In the resting state of neural membrane,  the diffusion due to concentration gradients, if  allowed, will drive (c) Na⁺into the cell.

• When the neurons are not conducting impulse, then the axonal membrane is more permeable to the K+ ions, which is impermeable to Na+ ions.
• The K+ ion concentration is more in the axoplasm while the Na+ ion concentration is more out of the axoplasm.
• On following the gradient of concentration, Na+ will pass into the cell.