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    				| 1. | Mark the vitamin present in rhodopsinA. vit-AB. vit-BC. vit-CD. vit-D | 
| Answer» 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. | |