BI-1398
Effect of temperature and pH on enzymes
Biology · Secondary 4 · Hard · Effect of temperature and pH on enzymes
In an investigation, the activity of an enzyme is measured at different pH values. The activity is highest at pH 7 and decreases at pH 5 and pH 9. Which statement best explains this pattern?
- The enzyme is denatured at pH 7 but active at pH 5 and pH 9.
- The enzyme’s active site is most complementary to the substrate at pH 7.
- The enzyme concentration is highest at pH 5 and lowest at pH 7.
- The substrate is completely used up at pH 9 but not at pH 7.
Sign in to check your answer and see the hint and the worked explanation. Free on PrepLab High.