The Direction of Change in Membrane Potential, in Response to a Stimulus

Multiple Choice

The direction of change in membrane potential, in response to a stimulus that initiates a graded potential, is dependent upon

A) the gating of potassium channels only.
B) the gating of sodium channels only.
C) that membrane's threshold potential.
D) the changes in ion concentration across the membrane.
E) the ion channels that are opened or closed.