Catalase is an enzyme that speeds up the breakdown of hydrogen peroxide into water and oxygen. Two students investigated how enzyme concentration affects the rate of reaction of catalase. They predicted that their results would follow the same pattern. The graphs display the rates measured by each student. Which statement accounts for the different pattern shown by student 2’s results?
- AStudent 2 included a competitive inhibitor in the investigation.
- BStudent 2 performed the investigation at a higher temperature.
- CStudent 2 performed the investigation at pH 6 compared to pH 8.
- DStudent 2 used a lower concentration of substrate in the investigation.