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Changing the local environment of reactants

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  • How do enzymes affect activation energy?

  • An enzyme is a substance that lowers the activation energy required for a chemical reaction, thereby accelerating the reaction. Enzymes are proteins in nature. Enzymes have active sites to which the reactants bind to form an enzyme-substrate complex. To unlock this lesson you must be a Study.com Member. How is activation energy affected by enzymes?

  • What is the role of binding energy in enzyme-substrate reactions?

  • Binding energy is the primary energy source used by the enzyme to lower the activation energy. So the key aspect of the enzyme-substrate reaction is that the enzyme reduces the activation energy for this reaction, thereby augmenting the rate. The binding energy provides this.

  • How do enzymes reduce the energy needed to complete a transition?

  • The enzyme may hold the substrates in such a way as to distort the substrate bonds closer to their form in the transition state. This reduces the amount of energy needed to complete the transition.

  • What is the function of enzymes?

  • Enzymes are an important class of proteins that help in cellular processes. Enzymes are particular in their binding and can be allosterically regulated. In enzyme-catalyzed reactions, the enzymes lower the activation energy needed for a certain chemical reaction.

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