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 discs of the inner segment (c) Retinal is a derivative of Vitamin A (d) Retinal is a light absorbing part of all the visual photopigments

• A. (a), (c) and (d)
• B. (a) and (c)
• C. (b), (c) and (d)
• D. (a) and (b)

Answer 1

Answer: (A)

(a), (c) and (d)

Answer 2

Carotene is the source of retinal which is involved in
formation of rhodopsin of rod cells. Retinal, a derivative of vitamin $A$, is the light-absorbing part of all visual photopigments.