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Q.
Which of the following vitamins is present in the protein found in rods?
NTA AbhyasNTA Abhyas 2020Neural Control and Coordination
Solution:
There are two types of photoreceptor cells, namely, rods and cones. These cells contain the light-sensitive proteins called the photopigments. The daylight (photopic) vision and colour vision are functions of cones and the twilight (scotopic) vision is the function of the rods. The rods contain a purplish-red protein called the rhodopsin or visual purple, which contains a derivative of Vitamin A.