BI-1310
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 activity of an enzyme that digests protein in milk. At 37 °C, the milk becomes clear in 4 minutes. At 47 °C, the milk does not become clear even after 20 minutes. Which statement best explains this result?
- The enzyme is denatured at 47 °C so it can no longer bind to the substrate.
- The enzyme works faster at 47 °C and finishes the reaction before the milk can clear.
- The enzyme is frozen at 47 °C so the particles stop moving.
- The enzyme concentration is higher at 47 °C so the milk stays cloudy.
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