Consider This Pathway: Epinephrine → G Protein-Coupled Receptor → G Protein → Adenylyl

question 18

Multiple Choice

Consider this pathway:
Epinephrine → G protein-coupled receptor → G protein → adenylyl cyclase → cAMP
The second messenger in this pathway is ________.

• A) cAMP
• B) G protein
• C) adenylyl cyclase
• D) G protein-coupled receptor

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