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When a neuron is in resting state i.e., not conducting any impulse, the axonal membrane is:

1. comparatively more permeable to Na+ ions and nearly impermeable to K+ ions
2. equally permeable to both Na+ and K+ ions
3. impermeable to both Na+ and K+ ions
4. comparatively more permeable to K+ ions and nearly impermeable to Na+ ions

Correct answer: comparatively more permeable to Na+ ions and nearly impermeable to K+ ions

Solution

In the resting state, the axonal membrane is more permeable to potassium ions and less permeable to sodium ions, allowing potassium ions to leave the cell and sodium ions to enter.

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