If the potassium permeability of a resting neuron increases above the resting permeability,what effect will this have on the transmembrane potential?
A)The inside of the membrane will become more positive.
B)The inside of the membrane will become more negative.
C)There will be almost no effect on transmembrane potential.
D)The membrane will become depolarized.
E)The outside of the membrane will become more positive.

Question

Quizplus · Accepted Answer

Increase in potassium permeability will lead to more potassium ions leaving the cell, causing the inside of the membrane to become more negative. This hyperpolarization will make it harder for the neuron to reach the threshold potential for firing an action potential.

If the Potassium Permeability of a Resting Neuron Increases Above