NEET Previous Year Question

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

Topic: NEET PYQ

Answer: C. Full step-by-step solution below.

  1. AEqually permeable to both and ions.
  2. BImpermeable to both and ions.
  3. CComparatively more permeable to ions and nearly impermeable to ions.
  4. DComparatively more permeable to ions and nearly impermeable to ions.

Correct answer: C

Solution

(c) In the resting state, the axonal membrane allows more ions to diffuse out and restricts entry, maintaining the resting potential.

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