Pennsylvania Keystone Exam - Biology Practice Questions - Pennsylvania Keystone Exam - Biology (PDE STEELS Aligned) Exam

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Enzymes are biological catalysts that speed up chemical reactions in living organisms. How do enzymes increase the rate of a biochemical reaction?

By increasing the temperature of the cellular environment By lowering the activation energy required for the reaction By adding energy to the substrates to transform them into products By permanently changing their shape to match the substrate

Correct Answer:

By lowering the activation energy required for the reaction

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