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
Following is true statement about enzymes? 
Select and explain. 
A. In competitive inhibition Vmax unchanged but Km increased, B. In uncompetitive inhibition Km unchanged but Vmax increased, C. In uncompetitive inhibition Km unchanged but Vmax changed, D. In uncompetitive inhibition mixed increase of Vmax and Km value
A: In competitive inhibition Vmax unchanged but Km increased
Answer: A: In competitive inhibition Vmax unchanged but Km increased 
Explanation: Ans. is 'a' i.e., In competitive inhibition Vmax unchanged but Km increased Type of inhibitor Km Vmax Reversible inhibbitor Competitive Increased No effect Non-competitive No effect Decreased Uncompititive Decreased Decreased Irrversible inhibitor No effect Decreased (same as reversible competitive)