What process is needed to return a membrane to its resting membrane potential with all ions in the correct locations?
A)after-hyperpolarization
B)all-or-none-law
C)Na+/K+ pump
D)refractory period

Question

Quizplus · Accepted Answer

The process needed to return a membrane to its resting membrane potential with all ions in the correct locations is the Na+/K+ pump. This pump actively transports 3 Na+ ions out of the cell and 2 K+ ions into the cell, which helps maintain the concentration gradients necessary for proper cellular function. The other options, after-hyperpolarization and refractory period, refer to brief periods of time after an action potential during which the membrane potential is temporarily altered. The all-or-none law is a principle stating that a neuron will either fire an action potential at full strength or not at all depending on the minimum threshold level of depolarization needed to trigger it. None of these processes directly address the need to restore the ions to their proper locations after an action potential.

What Process Is Needed to Return a Membrane to Its