<prompt> Increase in cAMP is caused by-Somatostainb Beta receptora Alfa receptorAcetylchoine  <response>: Ans. is b i.e. b Beta receptor Adenylyl cyclase AC o Activation of AC results in increased synthesis and intracellular accumulation of cAMP by stimulatory G protein. o cAMP acts through cAMP dependent Protein Kinase A, which phosphorylate and alters the function of many enzymes, ion channels and structural proteins. 