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 to K⁺ ions and nearly impermeable to Na⁺ ions

Answer 1

Answer: (D)

A neuron is the structural and functional unit of the nervous system. The neuron during resting state, i.e., when not conducting any impulse, the axonal membrane is comparatively more permeable to K⁺ ion and nearly impermeable to Na⁺ ions.