Good vision depends on adequate intake of carotene-rich food. Select the best option from the following statements: i. Vitamin A derivatives are formed from carotene. ii. The photopigments are embedded in the membrane discs of the inner segment. iii. Retinal is a derivative of Vitamin A. iv. Retinal is a light absorbing part of all the visual photopigments.

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Correct answer · Option B

i, iii and iv

Statements i, iii, and iv are correct. Photopigments are embedded in outer segment membrane discs, not inner segment.