Question

which one of the following statement is not correct ??

1) Retinal is derivative of vitamin C

2) Rhodopsin is the purplish red protein present in rods only

3) Retinal is the light absorbing portion of visual photo pigments

4) In retina the rods have the photopigment rhodopsin while cones have three different photopigments

Answer 1

right answer is either a , b , c or d

Answer 2

Retinal is derivative of vitamin A and not C . Thus option (1) is wrong.