Answered by AI, Verified by Human Experts
Final answer:c, indicating that the enzyme catalase is too concentrated. Increasing enzyme concentration results in increased reaction rate until a point where all enzyme active sites are saturated and a further increaseExplanation:The correct answer is option c. The enzyme is too concentrated. In the enzyme concentration lab results, an increase in catalase concentration corresponds to an increase in the bubble height, which is an indicator of reaction rate.When the concentration of catalase is increased from 2 mL to 4 mL, while keeping thehydrogen peroxide concentrationconstant at 4 mL, the bubble height increases (from 2.0 mL to 6.0 mL), implying that more of the substrate (hydrogen peroxide) is being converted to water and oxygen.This suggests that the amount of enzyme present is sufficient to process the available substrate, and the reaction rate is dependent on the enzyme concentration.However, even when the catalase concentration is greatly increased to 20 mL, the bubble height does not increase beyond 6.0 mL, indicating that the enzyme active sites are already saturated with substrate and a further increase in enzyme concentration does not affect the reaction rate.This is in line with the concept that once all active sites of the enzyme molecules are occupied by the substrate, excess enzymes will not increase the reaction rate. Therefore, option c is the most appropriate explanation for the observed data....