The rod cells in the retina contain a light absorbing pigment called?!
Question:
The rod cells in the retina contain a light absorbing pigment called?
iodopsin
melanin
rhodopsin
melatonin
Answers:
Rhodopsin, also called Visual Purple, is a chromoprotein (protein linked to a pigment-carrying substance) that is contained in the light-sensitive cells of the rod type in the retina of the eye. It functions in the eye's adaptation to dim light. When the eye is exposed to bright light, the rhodopsin bleaches; after an interval of darkness, it returns to its former purple-red colour.