This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolism of carbohydrate, Subject name: Biochemistry
[{'content': 'Naf inhibits \nSelect and explain. \nA. Enolase, B. Glucokinase, C. Hexokinase, D. G-6 PD', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Enolase requires Mg2++, and by removing magnesium ions, fluoride will irreversibly inhibit this enzyme. Thus fluoride will stop the whole glycolysis.Ref: DM Vasudevan, 7th edition, page no: 111', 'role': 'assistant'}]