Photoreceptors
A) are hyperpolarized in the dark and depolarized by light.
B) are depolarized in the dark and hyperpolarized by light.
C) produce action potentials in response to being in the dark.
D) produce action potentials in response to light.

Question

Quizplus · Accepted Answer

Photoreceptors, such as rods and cones, are depolarized in the dark due to a constant influx of sodium ions. When light is present, it causes a decrease in the influx of sodium ions, leading to hyperpolarization.