BI-1210
Effect of temperature and pH on enzymes
Biology · Secondary 4 · Hard · Effect of temperature and pH on enzymes
A student investigates how temperature affects enzyme activity. She measures the time taken for an enzyme to completely break down its substrate at different temperatures. At 30°C, the reaction finishes in 40 s. At 40°C, it finishes in 20 s. How does the rate at 40°C compare with the rate at 30°C?
- It is twice as fast at 40°C.
- It is half as fast at 40°C.
- It is the same at both temperatures.
- It is four times faster at 40°C.
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