The resting potential of a neuron is produced by A) voltage-gated channels in the membrane. B) chemically gated channels in the membrane. C) potassium channels in the membrane that are permanently open. D) the concentration difference in Na⁺ across the membrane. E) blockage of the sodium-potassium pump.

Question

Quizplus · Accepted Answer

The resting potential of a neuron is produced by the potassium channels in the membrane that are permanently open, allowing for a higher concentration of potassium ions inside the cell compared to outside. This creates an electrical charge or potential difference across the membrane.

Note: Option A is incorrect because voltage-gated channels are not involved in producing the resting potential. Option B is incorrect because chemically gated channels also do not contribute to the resting potential. Option D is incorrect because it is not the concentration difference in Na+ and Cl- ions that creates the resting potential, but rather the concentration difference in K+ ions. Option E is incorrect because blockage of the sodium-potassium pump would not affect the already-established resting potential.

The Resting Potential of a Neuron Is Produced by