Which of the following glycolytic enzyme does not catalyze irreversible step ?: (A) Hexokinase, (B) Phosphoglycerate kinase, (C) Phosphofructokinase, (D) Pyruvate kinase
Answer is B. Ans. is 'b' i.e., Phosphoglycerate kinaseIrreversible steps are catalyzed by :- Glucokinase / Hexokinase, phosphofructokinase-I, and pyruvate kinase.Reversible steps are catalyzed by :- Phosphohexose isomerase, aldolase, phosphotriose isomerase, glyceraldehyde 3-phosphate dehydrogenase, phosphoglycerate kinase, phosphoglycerate mutase, Enolase.