In chemistry it is called a catalyst. Enzymes decrease the activation energy needed to start a reaction.
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When activation energy is in the presence of an enzyme, the enzyme can lower the activation energy barrier required for a chemical reaction to occur. This allows the reaction to proceed at a faster rate and with lower energy input. The enzyme does this by stabilizing the transition state of the reaction, making it easier for the substrate molecules to react.
There is no straight forward relation between enzyme and activation energy because although energy of reaction is fixed and is governed by laws of chemistry but for biochemical reactions concentration of enzyme and conc. of substrate affect rate of reaction and energy, but in general enzymes decrease activation energy of reaction.
The enzyme reduces the activation energy of the reaction, therefore chemical reaction speeds are increased.
An enzyme speeds up a chemical reaction by lowering the activation energy.
It speeds up the reaction by lowering activation energy.
Enzymes reduce the activation energy required for a chemical reaction to occur by stabilizing the transition state of the reaction. This allows the reaction to proceed more rapidly than if it were to occur without the enzyme present.
Enzyme will reduce the activation energy of the reaction, thereby the speed of the reaction increases or acting as a catalyst.
by lowering the activation energy needed
Enzymes are catalysts, they reduce the activation energy.
Enzymes speed up a reaction by lowering the activation energy. This is the amount of energy required to start the reaction. By lowering the activation energy, the reaction can proceed much more quickly.
Enzymes lower the activation energy required to start the reaction.