For a neuron with an initial membrane potential at -70 mV,an increase in the movement of potassium ions out of that neuro's cytoplasm would result in the
A)depolarization of the neuron.
B)hyperpolarization of the neuron.
C)replacement of potassium ions with sodium ions.
D)replacement of potassium ions with calcium ions.
E)neuron switching on its sodium-potassium pump to restore the initial conditions.

Question

Quizplus · Accepted Answer

Potassium ions leaving the cytoplasm would result in an increased negative charge inside the neuron, leading to hyperpolarization (an increase in the membrane potential, further from the threshold for an action potential).

For a Neuron with an Initial Membrane Potential at -70