BI-1312
Effect of temperature and pH on enzymes
Biology · Secondary 4 · Hard · Effect of temperature and pH on enzymes
A student investigates how temperature affects the rate of an enzyme that digests protein in milk. She measures the time taken for the milk to turn clear at different temperatures.
At 30 °C, the milk turns clear in 40 s. At 40 °C, it turns clear in 20 s.
What happens to the rate of enzyme activity when the temperature is increased from 30 °C to 40 °C?
At 30 °C, the milk turns clear in 40 s. At 40 °C, it turns clear in 20 s.
What happens to the rate of enzyme activity when the temperature is increased from 30 °C to 40 °C?
- The rate halves.
- The rate stays the same.
- The rate doubles.
- The rate becomes four times.
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