This is the trans isomer of retinal.Where would it be bound to the opsin protein,and why?
A)Retinal would be found at the cytosolic side of opsin because it is hydrophilic.
B)Retinal would be found at the cytosolic side of opsin because it is mostly hydrophobic.
C)Retinal would be found in the transmembrane core of opsin because it is mostly hydrophobic.
D)Retinal would be found in the transmembrane core of opsin because it is hydrophilic.

Question

This is the trans isomer of retinal.Where would it be bound to the opsin protein,and why? 
A)Retinal would be found at the cytosolic side of opsin because it is hydrophilic. 
B)Retinal would be found at the cytosolic side of opsin because it is mostly hydrophobic. 
C)Retinal would be found in the transmembrane core of opsin because it is mostly hydrophobic. 
D)Retinal would be found in the transmembrane core of opsin because it is hydrophilic.

Quizplus · Accepted Answer

The trans isomer of retinal, like the cis isomer, is a mostly hydrophobic molecule. Therefore, it would be located in the transmembrane core of opsin, which is composed of hydrophobic amino acid residues. This location allows the retinal to interact with other residues in the opsin protein and form a stable complex, which is necessary for the function of the visual system.

This Is the Trans Isomer of Retinal