BI-135
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 70 °C, no product is formed. What is the most likely reason?
- 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 denatured but the enzyme remains unchanged.
- The enzyme concentration becomes zero at 70 °C.
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