Question

The purplish red pigment rhodopsin contained in rods type of photoreceptor cell is a derivative of ______?

• A. Vitamin B1
• B. Vitamin C
• C. Vitamin D
• D. Vitamin A

Answer 1

Answer:

D. Vitamin A

Rhodopsin is a derivative of vitamin A. Vitamin A includes retinol, retinal and carotenoids. Rhodopsin is a light sensitive receptor protein involved in visual phototransduction.