Make enzyme kinetics measurable, visual, and AP Biology–rigorous. In this Catalase Enzyme Kinetics Lab, students use catalase (potato or liver) to investigate the 4 biggest factors that affect enzyme activity: temperature, pH, substrate concentration, and inhibition. Students collect quantitative data using bubble column height (mm) as a proxy for oxygen production rate, graph multiple relationships (including a Michaelis–Menten–style curve), calculate Q10, estimate Vmax and Km, and exp