If the inner voltage of a cell is -70 mV and application of stimulation results in a -95 mV charge, the stimulation had a ____________ effect. On the other hand, a resultant charge of +40 mV would be a ___________ effect.
A) hyperpolarizing; depolarizing
B) depolarizing; hyperpolarizing
C) repolarizing; depolarizing
D) repolarizing; hyperpolarizing
E) hyperpolarizing; repolarizing

Question

Quizplus · Accepted Answer

When the charge becomes more negative (from -70 mV to -95 mV), it is hyperpolarizing which means it is making the cell more negative or further from the threshold required for an action potential. On the other hand, when the charge becomes more positive (from -70 mV to +40 mV), it is depolarizing which means it is making the cell more positive or closer to the threshold required for an action potential.

If the Inner Voltage of a Cell Is -70 MV