After moving from one room to another, Sally says "I have to pause for a minute so my opsin and retinal bond again." Sally has just moved from a __________ room to a __________ room.
A) brightly lit; dark
B) dark; brightly lit
C) small; large
D) quiet; loud

Question

Quizplus · Accepted Answer

Sally's mention of "opsin" and "retinal" point to her visual system. Opsin is a protein found in the cones of the retina that helps us detect color, while retinal is a molecule that binds to opsin to form photopigments that help us see in different levels of light. Moving from a brightly lit room to a dark room would cause these photopigments to break down and take some time to recover, which is why Sally needs to pause before continuing. Therefore, the best choice is A) brightly lit; dark.

After Moving from One Room to Another, Sally Says "I