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Catalase is a common enzyme found in nearly all living organisms exposed to oxygen. It catalyzes the decomposition of hydrogen peroxide to water and oxygen. It is a very important enzyme in protecting the cell from oxidative damage by reactive oxygen species. Likewise, catalase has one of the highest turnover numbers of all enzymes; one catalase molecule can convert millions of hydrogen peroxide molecules to water and oxygen each second. Catalase is a tetramer of four polypeptide chains, each ov
Background. The enzyme Catalase. Enzymes are proteins that help a certain chemical process take place. Chemical reactions require a certain amount of energy to take place.In the presence of the enzyme, the amount of energy required for the chemical process to take place is reduced.This happens because the enzymes bond with certain substrates to produce the end products.The reduction in the energy level helps to make the process happen faster.n the presence of the enzyme, the amount of energy required for the chemical process to take place is reduced. This happens because the enzymes bond with certain substrates to produce the end products. The reduction in the energy level helps to make the process happen faster.