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': 'In glycolysis, the first committed step is catalysed by- \nSelect and explain. \nA. a) 2, 3 DGP, B. b) Glucokinase, C. c) Hexokinase, D. d) Phosphofructokinase', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Phosphofructokinase catalyzes the commited step of glycolysis, meaning that once fructose l, 6 - bisphosphate is formed it must go for the glycolytic pathway only', 'role': 'assistant'}]