試題詳解

10. Regarding the mechanism for the control of the adenylate cyclase, which statement is incorrect?
(A) It is a membrane protein.
(B) It catalyzes the formation of cAMP using UTP.
(C) It is often activated or inhibited by G proteins.
(D) Its catalytic product is a second messenger in eukaryotic signal transduction.
(E) Adrenaline activates the adenylate cyclase indirectly.