Question

Which of these statements is false regarding photopigments of the eye?

(a) Scotopic vision is a function of rods

(b) Visual purple is a derivative of rhodopsin

(c) They are light sensitive proteins

(d) There are three types of cones

This question was addressed to me by my college professor while I was bunking the class.

This interesting question is from Neural Control and Coordination topic in division Neural Control and Coordination of Biology – Class 11

Answer 1

Right choice is (b) Visual purple is a derivative of rhodopsin

To explain: Rods and the three types of cones are the photoreceptor cells of the retina. Photopigments are light sensitive proteins. Scotopic vision is a function of rods. Visual purple is also called rhodopsin.