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Question: Answered & Verified by Expert
What type of ions are present in high concentration inside the axon when a neuron is resting?
BiologyNeural Control and CoordinationNEET
Options:
  • A Sodium ions
  • B Potassium ions
  • C Negatively charged proteins
  • D All of the above
Solution:
2438 Upvotes Verified Answer
The correct answer is: Potassium ions
When a neuron is resting, the axonal membrane is comparatively more permeable to potassium ions and nearly impermeable to sodium ions. The axoplasm inside the axon contains high concentration of K⁺ and negatively charged proteins and low concentration of Na⁺.

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