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
Which is true about enzyme kinetics for competitive inhibition? 
Select and explain. 
A. Low Km high affinity, B. High Km high affinity, C. High Km low affinity, D. Low Km low affinity
C: High Km low affinity
Answer: C: High Km low affinity 
Explanation: Ans. C. High Km and low affinityFeatures of competitive inhibition:Km increases, hence the affinity is loweredVmax remains the sameFeatures of noncompetitive inhibition:Km remains the sameVmax decreases