This Is the Trans Isomer of Retinal

question 13

Multiple Choice

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 hydrophobic.
• C) Retinal would be found in the transmembrane core of opsin because it is hydrophobic.
• D) Retinal would be found in the transmembrane core of opsin because it is hydrophilic.

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