This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Glycolysis, Subject name: Biochemistry
Fluoride inhibits which enzyme 
Select and explain. 
A. Aldolase, B. Succinate dehydrogenase, C. Pyruvate kinase, D. Enolase
D: Enolase
Answer: D: Enolase 
Explanation: Ans. is 'd' i.e. Enolase Enolase is an enzyme of glycolytic pathway catalyzing this step-2-phosphoglycerate = Phosphoenolpyruvate + H2O"Enolase is inhibited by fluoride, a property that can he made use of when it is required to prevent glycolysis in blood prior to the estimation of glucose."