<prompt> Which of the following enzyme catalyses the formation of AMP from two molecules of ADP?Adenylate kinaseAdenylyl cyclaseAdenosine kinaseAdenosine deaminase  <response>: When ATP level is reduced, AMP is formed by Adenylate kinase reaction. 2 ADP - ATP AMP This is why AMP is an allosteric activator of glycolysis. Adenylate kinase or myokinase is a phosphotransferase. It catalyses the interconversion of adenine nucleotides ATP, ADP, and AMP. It plays an impoant role in cellular energy homeostasis. 