Question

What happens when you walk from a sunlit compound into a dark place?

• A. Regeneration of rhodopsin in the rods
• B. Bleaching of rhodopsin in the rods
• C. Regeneration of iodopsin in rods
• D. Bleaching of iodopsin in rods

Answer 1

The correct option is A

Regeneration of rhodopsin in the rods

When we walk from a sunlit compound into a dark place, we are unable to see anything for a few seconds but after a few seconds, the vision becomes clear. It is called dark adaptation. This is achieved by regeneration of visual pigment rhodopsin in the rods and an increase in the diameter of the pupil that allows more light to enter into the eyes.