Practice question

MCQ

Question

Which ion is mainly responsible for maintaining the resting membrane potential in neurons?

Choose one · Correct answer highlighted

Sodium (Na⁺) Calcium (Ca²⁺) Potassium (K⁺) Correct Chloride (Cl⁻)

Potassium ions (K⁺) play a key role in maintaining the resting membrane potential by being more permeable than sodium ions.

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