BI-1378
Effect of temperature and pH on enzymes
Biology · Secondary 4 · Medium · Effect of temperature and pH on enzymes
A scientist measures the rate of an enzyme-controlled reaction at different temperatures.
Between 20 °C and 35 °C, the rate increases. Which statement best explains this increase?
Between 20 °C and 35 °C, the rate increases. Which statement best explains this increase?
- More frequent successful collisions occur between enzyme and substrate.
- The enzyme’s active site permanently changes shape.
- The substrate molecules become larger and easier to break.
- The enzyme is completely denatured at 20 °C.
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