Question

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

• A. Comparatively more permeable to $Na ^{+}$ ions and nearly impermeable to $K ^{+}$ ions
• B. Equally permeable to both $Na ^{+}$ and $K ^{+}$ ions
• C. Impermeable to both $Na ^{+}$ and $K ^{+}$ ions
• D. Comparatively more permeable of $K ^{+}$ ions and nearly impermeable to $Na ^{+}$ ions

Answer 1

Answer: (D)

When a neuron is not conducting any impulse, i.e., resting, the axonal membrane is comparatively more permeable to potassium ions (K+) and nearly impermeable to sodium ions.