This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'All known effects of cyclic AMP eukaryotic cells results from \nSelect and explain. \nA. Activation of catalytic unit of adenylate cyclase, B. Activation of Synthestase, C. Activation of protein kinase, D. Phosphorylation of G protein', 'role': 'user'}, {'content': "Answer: C \nExplanation: Cyclic AMP exces most 9f it's evgect by stimulating cAMP dependent protein kinase.these phosphorylation enzyme results in their activation or inhibitions Ref-KDT 7/e p46", 'role': 'assistant'}]