When a rod absorbs a photon of light, retinal changes from the
A. 11-cis form to the all-trans form and merges with opsin to form rhodopsin.
B. all-trans form to the 11-cis form and merges with opsin to form rhodopsin.
C. 11-cis form to the all-trans form, and the rhodopsin molecule breaks apart.
D. all-trans form to the 11-cis form, and the rhodopsin molecule breaks apart.
Answer: C
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