Q. 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) and (b)
B) (a), (c) and (d)
C) (a) and (c)
D) (b), (c) and (d)
Explanation
[Solution] Photopigments lie in discs of the outer segment, so (b) is wrong; (a), (c) and (d) are correct. Answer (2).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.