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.

Question

Quizplus · Accepted Answer

The frequency at which an axon fires is the main difference between a weak stimulus and an intense stimulus. A weak stimulus will cause the axon to fire at a lower frequency, while an intense stimulus will cause the axon to fire at a higher frequency. This is due to the fact that the greater the ion concentration difference produced by the stimulus, the easier it is for the axon to reach its threshold potential and fire.

Ion Concentration Differences Produce an Action Potential Creating a Stimulus