Ion Concentration Differences Produce an Action Potential Creating a Stimulus

Multiple Choice

Ion concentration differences produce an action potential creating a stimulus. The difference between a weak stimulus and an intense stimulus is

A) the action potential is graduated and a weak stimulus causes a small change in polarity.
B) weak stimuli only open sodium gates, strong stimuli also open potassium gates.
C) the frequency at which an axon fires.
D) a strong stimulus does not allow repolarization but sends a constant flow of ions.
E) All of the choices are correct.