Graded potentials
A)produce an effect that increases with distance from the point of stimulation.
B)produce an effect that spreads actively across the membrane surface without diminishing.
C)may be either a depolarization or a hyperpolarization.
D)are often all-or-none.
E)always cause repolarization.

Question

Quizplus · Accepted Answer

Graded potentials can either be a depolarization or a hyperpolarization, depending on the type of ion channels involved and the direction of ion movement. They do not always cause repolarization, and they are not typically all-or-none. Graded potentials also exhibit spatial summation and temporal summation, meaning that they can add up and change in magnitude as they travel along the neuron. However, they do not actively spread without diminishing - instead, their amplitude diminishes with distance from the point of stimulation.

Graded Potentials