Practice question

Decrease in both Km and Vmax is the accurate response regarding enzymatic activity or regulation described in this question. Enzymes are biological catalysts that accelerate reactions by lowering activation energy through specific substrate binding and transition state stabilization. In the context of Enzyme Inhibition, Decrease in both Km and Vmax plays a specific catalytic or regulatory role determined by its active site configuration and mechanism of action. The other options (No effect on Km but reduction in Vmax, Increase in both Km and Vmax, and Decrease in Km but constant Vmax) are either different enzymes with distinct substrate specificities, act through different mechanisms, or are involved in separate metabolic pathways.