Question

how do enzymes speed up chemical reaction?

Answer 1

Enzymes are biological catalysts. Catalysts lower the activation energy for reactions. The lower the activation energy for a reaction, the faster the rate. Thus enzymes speed up reactions by lowering activation energy.

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Answer 2

Answer:

Hi! there

Explanation: So, they are biological catalysts that either accelerate or decelerate the chemical process. The enzymes speed up reactions by lowering activation energy

More effective:

They reduce the energy which reactants need to overcome energy barrier and to start a specific reaction. And this energy is called activation energy. They simply lower this energy, reducing the time for the reactants(substrates) to be transformed into products. Hence, Enzymes increase the rate of a specific biochemical reaction.