This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolism of carbohydrate, Subject name: Biochemistry
[{'content': 'Glycogen phosphorylase is active in \nSelect and explain. \nA. Phosphorylated form, B. Dephosphorylated form, C. Both phosphorylated & dephosphorylated form, D. No rate of phosphorylation', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The phosphorylase -b is the inactive form. It becomes active on phosphorylation. The active enzyme denoted as phosphorylase -aRef: DM Vasudevan, 7th edition, page no: 127', 'role': 'assistant'}]