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BIO NMDCAT Neurons
nmdcat.online July 7, 2026

During resting membrane potential maintenance, the neural membrane is relatively impermeable to

A. Potassium ions
B. Sodium ions
✓
C. Chloride ions
D. Small uncharged molecules

📝 Explanation

At rest, sodium leak channels are very rare compared to abundant potassium leak channels, making the resting membrane highly impermeable to Na+ and highly permeable to K+.

📖 Additional Information

  • Potassium ions
  • Sodium ions
  • Chloride ions
  • Small uncharged molecules

At rest, sodium leak channels are very rare compared to abundant potassium leak channels, making the resting membrane highly impermeable to Na+ and highly permeable to K+.

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