Consider this pathway: epinephrine → G protein-coupled receptor → G protein → adenylyl cyclase → cAMP. Identify the second messenger.
A) cAMP
B) G protein
C) GTP
D) adenylyl cyclase
E) G protein-coupled receptor

Question

Quizplus · Accepted Answer

The second messenger in this pathway is cAMP, which is produced by adenylyl cyclase in response to activation of the G protein-coupled receptor and subsequent activation of the G protein.

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