Which of the following is/are true about the enzyme adenylate cyclase (AC)?

Physiology Test Question

	(A) It is a membrane-bound enzyme.
	(B) It catalyzes the conversion of ATP to cAMP and pyrophosphate (ATP → cAMP + PP_i).
	(C) It catalyzes the conversion of ATP to cAMP and inorganic phosphate (ATP → cAMP + P_i).
	(D) A Nobel Prize was awarded in 1971 for discovering the role of this enzyme in a ubiquitous cellular signal transduction mechanism.
	(E) Divalent cations, especially, magnesium (Mg²⁺) are required for the normal function of this enzyme.

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