Multiple Choice
Which of the following statements concerning the action of G proteins on adenylate cyclase is true?
(I) G proteins always serve to activate adenylate cyclase.
(II) G proteins always serve to inhibit adenylate cyclase.
(III) Some G proteins activate adenylate cyclase,while others inhibit it.
(IV) G proteins do not act on adenylate cyclase at all.
A) I only
B) II,III
C) I,III
D) II only
E) III only
Correct Answer:
Verified
Correct Answer:
Verified
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