BI-1369
Effect of temperature and pH on enzymes
Biology · Secondary 4 · Hard · Effect of temperature and pH on enzymes
A student measures the time taken for a catalase-soaked disc to rise in hydrogen peroxide at two different temperatures. At 25°C, the mean time is 30 s. At 35°C, the mean time is 15 s. Using rate , what conclusion about the effect of temperature on catalase activity is best supported by these results?
- Catalase activity is higher at 35°C than at 25°C in this temperature range.
- Catalase is denatured at 35°C and stops working completely.
- Catalase activity is the same at 25°C and 35°C.
- Catalase activity decreases as temperature increases from 25°C to 35°C.
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