BI-109
Effect of temperature and pH on enzymes
Biology · Secondary 3 · Hard · Effect of temperature and pH on enzymes
In an experiment, a student investigates how temperature affects the activity of amylase on starch. The mixture is kept at 37 °C and the time taken for all starch to be digested is measured. Which change would most likely DECREASE the rate of reaction?
- Raising the temperature from 37 °C to 40 °C
- Lowering the temperature from 37 °C to 20 °C
- Keeping the temperature constant at 37 °C
- Heating the mixture quickly to 80 °C then cooling back to 37 °C
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