A cone exposed to light will
A)undergo a graded depolarization that will increase its release of glutamate.
B)undergo a graded hyperpolarization that will increase its release of glutamate.
C)undergo a graded depolarization that will decrease its release of glutamate.
D)undergo a graded hyperpolarization that will decrease its release of glutamate.

Question

Quizplus · Accepted Answer

In response to light, cones (and rods) in the retina undergo a graded hyperpolarization, which leads to a decrease in the release of the neurotransmitter glutamate. This process is part of the phototransduction pathway, where light exposure changes the cell's membrane potential, affecting neurotransmitter release.

A Cone Exposed to Light Will