In the retina, when illuminated, cone receptors that connect to an on-center bipolar cell cause _______ in the on-center bipolar cell.
A) a depolarization
B) a hyperpolarization
C) an action potential
D) no change

Question

Quizplus · Accepted Answer

When cone receptors in the retina are illuminated, they hyperpolarize and stop releasing glutamate. This lack of glutamate release leads to a decrease in activation of OFF-center bipolar cells and an increase in activation of ON-center bipolar cells, causing a depolarization of the ON-center bipolar cell.

In the Retina, When Illuminated, Cone Receptors That Connect to an On-Center