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': 'All of the covalent modification regulate enzyme kinetics except \nSelect and explain. \nA. Phosphorylation, B. Acetylation, C. ADP Ribosylation, D. Glycosylation', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Reversible covalent modifications\n• Phosphorylation Dephosphorylation\n• ADP Ribosylation\n• Methylation\n• Acetylation.\nIrreversible Covalent Modification\n• Zymogen activation/ Partial Proteolysis.', 'role': 'assistant'}]