Question

enzymes check for understanding, 1. researchers know that the reaction rate of an enzyme is affected by temperature and ph level. some of these effects are shown on the graphs below. if the enzyme was placed in an environment where the temperature is 70°c with a ph 5.5, what would be expected to happen to the rate of reaction? a. there would be an increased rate of reaction. b. there would be no change to the rate of reaction. c. there would be a reduced rate of reaction with possible denaturing of the enzyme. d. there would first be an increased rate of reaction and then a decreased rate of reaction.

Explanation:

Step1: Analyze enzyme - activity graphs

Enzymes have optimal temperature and pH for maximum activity.

Step2: Evaluate given conditions

Given temperature 70°C is likely high (above optimal for many enzymes) and pH 5.5 may or may not be optimal. High temperatures can denature enzymes.

Step3: Determine reaction - rate effect

Denatured enzymes have reduced or no activity, leading to a decreased reaction rate.

Answer:

C. There would be a reduced rate of reaction with possible denaturing of the enzyme.