34. Which of the following best explains the chain of events that occurs when glucagon binds
to its receptor?
(A) activation of protein kinase A, activation of G protein, activation of adenylate cyclase,
production of cAMP
(B) activation of adenylate cyclase, production of cAMP, activation of protein kinase A,
activation of G protein
(C) production of cAMP, activation of adenylate cyclase, activation of protein kinase A,
activation of G protein
(D) activation of G protein, activation of protein kinase A, activation of adenylate cyclase,
production of cAMP
(E) activation of G protein, activation of adenylate cyclase, production of cAMP, activation
of protein kinase A