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:D
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