Enzymes allow activation energies to be lowered.
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Enzymes allow activation energies to be lowered.
Enzymes lower the activation energy necessary to transform a reactant into a product. On the left is a reaction that is not catalyzed by an enzyme (red), and on the right is one that is (green). In the enzyme-catalyzed reaction, an enzyme will bind to a reactant and facilitate its transformation into a product. Consequently, an enzyme-catalyzed reaction pathway has a smaller energy barrier (activation energy) to overcome before the reaction can proceed.
This image is linked to the following Scitable pages:
Cells generate energy from the controlled breakdown of food molecules. Learn more about the energy-generating processes of glycolysis, the citric acid cycle, and oxidative phosphorylation.
Protein surfaces are designed for interaction. Learn how proteins can bind and release other molecules as they carry out many different roles in cells.
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