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Question
Good vision depends on adequate intake of carotene rich food.
Select the best option from the following statements.
A. Vitamin A derivatives are formed from carotene.
B. The photopigments are embedded in the membrane disc of the inner segment.
C. Retinal is a derivative of Vitamin A.
D. Retinal is a light absorbing part of all the visual photopigments.
Good vision depends on adequate intake of carotene rich food.
Select the best option from the following statements.
A. Vitamin A derivatives are formed from carotene.
B. The photopigments are embedded in the membrane disc of the inner segment.
C. Retinal is a derivative of Vitamin A.
D. Retinal is a light absorbing part of all the visual photopigments.
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Solution
The correct option is C A, C, and D
The retina of the eyes has proteins called opsin which binds to the retinal. Retinal is the light-sensitive pigments. Vitamin A is necessary for the production of retinal, a component of rhodopsin. Rhodopsin is required for sensing dim light. Since deficiency of vitamin A leads to inadequate production of retinal it results in poor vision. Carotenes are the pigments present in red -orange fruits and vegetables. Carotenes synthesize vitamin A derivatives. Thus the correct answer is option C.
The retina of the eyes has proteins called opsin which binds to the retinal. Retinal is the light-sensitive pigments. Vitamin A is necessary for the production of retinal, a component of rhodopsin. Rhodopsin is required for sensing dim light. Since deficiency of vitamin A leads to inadequate production of retinal it results in poor vision. Carotenes are the pigments present in red -orange fruits and vegetables. Carotenes synthesize vitamin A derivatives. Thus the correct answer is option C.
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