A photopsin is a protein
A) of a photopigment within cone photoreceptors.
B) of a photopigment within rod photoreceptors.
C) that is derived from Vitamin E.
D) that allows ions to flow into rod and cone photoreceptors.

Question

Quizplus · Accepted Answer

Photopsins are light-sensitive proteins found in the cone cells of the retina, responsible for color vision. They are not found in rod photoreceptors, are not derived from Vitamin E, and do not function as ion channels.

A Photopsin Is a Protein