Which one of the following statements is not correct ?

Options

A. Retinal is the light absorbing portion of visual photopigments
B. In retinal the rods have the photopigment rhodopsin, while cones have three different photopigments
C. Retinal is a derivative of vitamin-C
D. Rhodopsin is the purplish red protein present in rods only

Answer

C

Explanation

Retinal pigment of epithelium shields the retina from excess incoming light. It supplies - 3 fatty acid and glucose to the retina. The former is used for building photoreceptive by membranes the latter used for energy retinal is supplied by the visual vitamin-A cycle.