Enzymes are complex substances that alter the reaction. Either it increases the reaction rate or decreases depending on its characteristics. The enzyme helps to lower the energy needed for the reaction to occur in the cell.
What is the activation energy?
Activation energy is the minimum amount of energy that is given to a compound to result in a chemical reaction.
In other words, it is the energy required to activate the molecules to undergo a chemical reaction.
Enzymes help to lower this activation energy needed for a reaction to occur. It is done by binding the enzyme to a substrate and holding it which allows the reaction to happen more efficiently.
Thus, the correct option is D.
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