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At rest, the axon membrane is more permeable to:
AChloride ions
BPotassium ions
CSodium ions
DCalcium ions
Answer & Solution
Correct answer: B. Potassium ions
1. The resting membrane is nearly impermeable to sodium.
2. It lets potassium through more easily.
3. So potassium ions cross more readily.
_Source: NCERT Class 11 Biology, Chapter 21, Neural Control and Coordination._
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