The effect of a competitive inhibitor on an enzyme's reaction rate is:
Increases Km but Vmax remains unchanged correctly describes the effect or change asked about in this question. In Enzyme Inhibition, understanding cause-and-effect relationships is essential for predicting biological outcomes. Increases Km but Vmax remains unchanged occurs because of specific molecular interactions, thermodynamic principles, or regulatory mechanisms that govern this biological process. The other options (Decreases both Km and Vmax, Increases Km and decreases Vmax, and No change in Km or Vmax) describe either opposite effects, effects that occur under different conditions, or c
Ref: Lehninger Principles of Biochemistry, Nelson & Cox, 8th Ed., Ch. 6
