BI-136
Effect of temperature and pH on enzymes
Biology · Secondary 3 · Hard · Effect of temperature and pH on enzymes
A student investigates the effect of temperature on an enzyme. At 37 °C, the reaction rate is highest. At 60 °C, no product is formed even though substrate is present. What is the best explanation?
- The enzyme is denatured and its active site no longer fits the substrate
- The enzyme has too little kinetic energy to collide with substrate
- The substrate is completely used up at 60 °C
- The enzyme concentration becomes zero at 60 °C
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