| [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 photo pigments |
A) [b], [c] & [d]
B) [a] & [b]
C) [a], [c] & [d]
D) [a] & [c]
Correct Answer: C
Solution :
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 photo pigments.
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