BI-1400
Effect of temperature and pH on enzymes
Biology · Secondary 4 · Medium · Effect of temperature and pH on enzymes
A student tests how temperature affects an enzyme that breaks down hydrogen peroxide. At 20 °C the reaction is slow, at 35 °C it is fast, and at 80 °C there is no visible reaction.
Which conclusion about the enzyme is most appropriate?
Which conclusion about the enzyme is most appropriate?
- The enzyme is denatured at 80 °C and cannot catalyse the reaction.
- The enzyme is most active at 20 °C and inhibited at 35 °C.
- The enzyme is used up completely by 80 °C.
- The substrate becomes non-reactive at 35 °C but reactive again at 80 °C.
Sign in to check your answer and see the hint and the worked explanation. Free on PrepLab High.