This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Carbohydrates, Subject name: Biochemistry
[{'content': 'The enzyme phospho fructokinase 1 is strongly activated by: \nSelect and explain. \nA. Cyclic amp, B. Adenosine triphosphate, C. Citrate, D. Fructose 2,6 bisphosphate', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. D. Fructose 2,6 bisphosphatePFK is the most important regulatory enzyme in glycolysis. PFK is an allosteric enzyme regulated by allosteric effectors. ATP, citrate and H+ ions are the most important allosteric inhibitors.', 'role': 'assistant'}]