question_answer 19)

  Mark the vitamin present in rhodopsin (a) vit-A                                (b)vit-B                                 (c) vit-C                                (d) vit-D

Answer:

                  (a) The rods contain a purplish red protein called the rhodopsin. It is a photosensitive compound in eye that is composed of opsin (a protein) and retinal (an aldehyde of vitamin-A), whereas vitamin-B, C and D not directly related with vision.