Enzymes are proteins. They are also catalysts, which means that they speed up chemical reactions by using less energy.
Enzymes have a specific substrate which bonds to them. This substrate bonds to a location on the enzyme called an active site. When the chemical reaction takes place, the result is called a product.
Enzymes can break down or put together molecules and they can also denature, which means that they lose their function, which is caused by pH levels and temperature.
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