A) Conversion of 11 ci5-retinene to trans- retinene
B) Conversion of trans-retinene into 11-cis- retinene
C) Decomposition of rhodopsin into retinene
D) Decomposition of rhodopsin to scotopsin
Correct Answer: B
Solution :
Retinevne can exist in two forms, different in molecular shape, called cis-retinene and trans-retinene. In the dark (trans-retinene changes into ci5-retinene and joins opsin once more to form the rhodopsin.
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