試題詳解

16. The cyclic adenosine monophosphate (cAMP) is synthesized by________ , and it is degraded by_________.
(A) adenylate cyclase； phosphodiesterases
(B) phosphodiesterases； adenylate cyclase
(C) adenylate cyclase； phosphoesterases
(D) phosphoesterases； adenylate cyclase
(E) None of the above is correct