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.