Vision in Dim Light by Rods *Night Vision, Black/White Vision*

Question 1

Rods–Bipolar neurons containing

photopigment ____________ ; Not found in the fovea

Answer 1

rhodopsin

Question 2

In dim light __________ is active. It produces depolarizations that create action
potentials, allowing you to see in dim light.

Answer 2

rhodopsin

Question 3

In bright light rhodopsin becomes inactive, breaking apart into two pieces, ________ and _________.

Answer 3

retinal

opsin

Question 4

Rhodopsin is _________, but when it absorbs bright light and breaks apart it becomes _______, a process known

as __________. (In bright light rhodopsin produces hyperpolarizations,or does not function.)

Answer 4

purple

clear

bleaching

Question 5

When moving from area of bright light to darkness (dim light), _________ & _________ must be recombined to form rhodopsin to allow you to see.

Answer 5

retinal

opsin