No background information in the passage.
It was noted that when white light was shined into a normal person's eyes, their rod cells hyperpolarized. This is:
a. normal, because rod cells are usually permeable to sodium.
b. normal, because light opens voltage-gated potassium channels in rod cells.
c. abnormal, because rod cells are hyperpolarized at rest.
d. abnormal, because rod cells respond to red light
answer: A.
So I have very little knowledge of how eyes work in terms of action potential stuff. Can I please have an explanation?
It was noted that when white light was shined into a normal person's eyes, their rod cells hyperpolarized. This is:
a. normal, because rod cells are usually permeable to sodium.
b. normal, because light opens voltage-gated potassium channels in rod cells.
c. abnormal, because rod cells are hyperpolarized at rest.
d. abnormal, because rod cells respond to red light
answer: A.
So I have very little knowledge of how eyes work in terms of action potential stuff. Can I please have an explanation?