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) & (b)
- B(a), (c) & (d)
- C(a) & (c)
- D(b), (c) & (d)
Solution & Step-by-step Explanation
(a) is correct: -carotene is a precursor to Vitamin A.(b) is incorrect: Photopigments are located in the membrane discs of the outer segment, not the inner segment.(c) is correct: Retinal is an aldehyde form of Vitamin A.(d) is correct: Retinal is the chromophore that absorbs light in all visual pigments.Statements (a), (c), and (d) are true.