What sequence of events leads to the perception of a visual scene?
I.In response to light,retinal dissociates from rod and cone photopigments,hyperpolarizing the photoreceptor cells and leading to activation of bipolar neurons.
II)Action potentials are propagated through ganglion cells,whose axons project to the occipital lobe of the brain.
III)In response to light,rod and cone photoreceptors depolarize,causing increased release of neurotransmitter and activation of bipolar neurons.
A)I then III
B)III then II
C)III then I then II
D)I then II then III
E)I then II

Question

What sequence of events leads to the perception of a visual scene?
 I.In response to light,retinal dissociates from rod and cone photopigments,hyperpolarizing the photoreceptor cells and leading to activation of bipolar neurons.
II)Action potentials are propagated through ganglion cells,whose axons project to the occipital lobe of the brain.
III)In response to light,rod and cone photoreceptors depolarize,causing increased release of neurotransmitter and activation of bipolar neurons.
A)I then III
B)III then II
C)III then I then II
D)I then II then III
E)I then II

Quizplus · Accepted Answer

The correct sequence starts with the dissociation of retinal from rod and cone photopigments in response to light, which hyperpolarizes the photoreceptor cells. This leads to the activation of bipolar neurons (I). Then, action potentials are propagated through ganglion cells, whose axons project to the occipital lobe of the brain for visual processing (II). Option III is incorrect because rod and cone photoreceptors hyperpolarize, not depolarize, in response to light.

What Sequence of Events Leads to the Perception of a Visual