BI-1267
Effect of temperature and pH on enzymes
Biology · Secondary 4 · Hard · Effect of temperature and pH on enzymes
Two protease enzymes, P and Q, were tested at different temperatures. Enzyme P showed its highest activity at 37 °C, while enzyme Q showed its highest activity at 20 °C. Which statement best explains which enzyme is more likely to be from the human body?
- Enzyme P, because its optimum temperature matches normal human body temperature.
- Enzyme Q, because human enzymes always work best at room temperature.
- Enzyme P, because human enzymes are inactive at 37 °C.
- Enzyme Q, because human enzymes must have an optimum below 25 °C.
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