This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
[{'content': 'The following affect enzyme activity except \nSelect and explain. \nA. Methylation, B. Acetylation, C. Induction, D. Phosphorylation', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Regulation of Enzymes\nCan be classified as:\nRegulation of Enzyme Quality (Intrinsic Catalytic Efficiency)\n• Allosteric Regulation\n• Covalent modification. \nCovalent modification\n• Phosphorylation/dephosphorylation \n• Methylation\n• Adenylation\n• ADP ribosylation\n• Acetylation.\nRegulation of enzyme quantity\nControl of Enzyme Synthesis\nBy Induction and Repression\nControl of Enzyme Degradation Enzymes are degraded by Ubiquitin—Proteasome pathway.', 'role': 'assistant'}]