Naf inhibits: (A) Enolase, (B) Glucokinase, (C) Hexokinase, (D) G-6 PD
Answer is A. 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