What reaction has to occur each time light reaches the eye before the product of this reaction can be recombined with opsin to reform rhodopsin?
A) Cis-retinal must be reconverted to trans-retinal
B) Trans-retinal must be reconverted to cis-retinal
C) β-carotene must be reconverted to preformed vitamin A
D) Preformed vitamin A must be reconverted to β-carotene
Correct Answer:
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