medium · MCAT bio-biochem
A patient is found to have a mutation that disables the sodium-potassium pump (Na^+/K^+-ATPase).
Which of the following describes the immediate effect on the resting membrane potential of their neurons?
- The membrane potential will hyperpolarize to -90 mV.
- The membrane potential will immediately fire a continuous action potential.
- The membrane potential will stay locked at -70 mV due to passive leak channels.
- The membrane potential will gradually move toward 0 mV.
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