This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Enzymes, Subject name: Biochemistry
[{'content': 'True about competitive inhibition is \nSelect and explain. \nA. Increases Vmax, B. Increased Km, C. Decreased Vmax, D. Decreased Km', 'role': 'user'}, {'content': 'Answer: B \nExplanation: In the case of competitive inhibition, the Km is increased in presence of competitive inhibitor. Thus competitive inhibitor apparently increases the Km. In other words, the affinity of the enzyme towards the substrate is apparently decreased in presence of the inhibitor. vii. But Vmax is not changed.Ref: DM Vasudevan, page no: 52', 'role': 'assistant'}]