BI-1201
Effect of temperature and pH on enzymes
Biology · Secondary 4 · Hard · Effect of temperature and pH on enzymes
In an investigation on catalase, potato discs were placed in hydrogen peroxide at different temperatures. At 30 °C, a disc took 20 s to float to the surface. At 40 °C, it took 10 s. What is the best conclusion about the rate of enzyme activity at 40 °C compared to 30 °C?
- The rate at 40 °C is half that at 30 °C.
- The rate at 40 °C is the same as at 30 °C.
- The rate at 40 °C is twice that at 30 °C.
- The rate at 40 °C is four times that at 30 °C.
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