Retinine exist in two forms, different in molecular shape they are, cis retinine and trans retinine. 11-cis Retinal is the light-sensitive component of rod and cone photoreceptors. In the first step of vision, photoreceptors are activated when light induces the isomerization of 11-cis retinal to all-trans retinal. In the dark, trans retinene changes to cis retinene and joins opsin once more to form the rhodopsin.
So, the correct answer is option B.
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Similar Questions
Q1
Define the cis-trans isomerism? Show the cis-trans isomers of [Co(NH3)4Cl2]+:
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Q2
Difference in the physical properties of cis and trans isomer is due to :
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Q3
In E-Z system of configuration, E corresponds to cis and Z corresponds to trans isomer.