Final answer:
The optimal temperature for catalase is around 37°C, the normal human body temperature, and the optimal pH is around 7.4, which is close to the physiological pH of most body fluids.
Step-by-step explanation:
According to the Bio Enzyme Lab, the optimal temperature for catalase, like many enzymes that function within the human body, is at physiological conditions, which is around 37°C (98.6°F). This is because many enzymes, including catalase, lose function at lower and higher temperatures as their shape deteriorates due to denaturation. As for the optimal pH, most enzymes exhibit maximum activity at a pH that reflects the biological or physiological pH, around 7.4. However, depending on the enzyme's natural environment, such as pepsin in the stomach at pH 2 or trypsin in the intestine at pH 8, this can vary significantly