Which of the following is a membrane-bound enzyme that catalyzes the formation of cyclic AMP from ATP?: (A) Tyrosine kinase, (B) Polymerase, (C) ATP synthase, (D) Adenylate cyclase
Answer is D. An enzyme that catalyzes the conversion of adenosine triphosphate (ATP) to cyclic adenosine monophosphate (cAMP) and inorganic pyrophosphate (PPi ).It is activated by the attachment of a hormone or neurotransmitter to a specific membrane-bound receptor.Ref: DM Vasudevan, 7th edition, page no: 504, 506