Why Is It Important for Potassium Ions (K+) to Move

Multiple Choice

Why is it important for potassium ions (K+) to move out of the axon once an action potential has been fired?

A) Because their continued presence would be damaging to the tissues of the axon
B) So that the neuron will have the ability to generate another action potential
C) Because of the required binding with potassium (K+) to activate the refractory period
D) In order to create a more negative charge outside rather than inside the neuron