1.9: changes to enzyme activity

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Biology

Cells

GCSE Biology

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Last updated 10:53 PM on 3/24/26

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Why does enzyme activity change?

There is an optimum temperature and pH which leads to the fastest rate of reaction. Outside of these levels, the rate and enzyme activity decreases

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What is the optimum temperature?

37 degrees Celsius

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What is the optimum pH?

8

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What factors affect enzyme activity?

Temperature, pH and substrate concentration