The All-Trans Retinal and 11-Cis-Retinal Shapes of Photopigment Molecules Are

question 9

Multiple Choice

The all-trans retinal and 11-cis-retinal shapes of photopigment molecules are known as:

• A) phosphenes.
• B) isomers.
• C) photochromes.
• D) enantiomers.

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