The purplish red pigment rhodopsin contained in the rod type of photoreceptor cells of the human eye, is a derivative of
- vitamin B1
- vitamin C
- vitamin D
- vitamin A
Answer
(4) vitamin A
Solution
As per NCERT, the rods contain a purplish-red protein called rhodopsin (visual purple), which contains a derivative of vitamin A (retinal).
Deficiency of vitamin A therefore causes night blindness.
Answer: (4)