Question : In the chemistry of vision in mammals, the photosensitive s

1.	Question : In the chemistry of vision in mammals, the photosensitive substance is called
Answer» rhodopsin melanin sclerotin retinol Solution :Rhodopsin is a pigment present in the rod cells of the retina.It consists of two components-opsin and RETINAL (=retinene).Retinal is an aldehyde of vitamin A which absorbs light FALLING on the rod and changes its form and separates from the opsin component This INITIATES the transmission of a NERVE impulse to the brain.Rhodopsin is a PHOTOSENSITIVE substance and allows vision in dim light (night vision).

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