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Enzymes - Coggle Diagram
Enzymes
5.1-Biological catalysts
A catalyst is a substance that increases the rate of a chemical reaction and is not changed by the reaction.
Chemical reactions called metabolic reactions. Almost all metabolic reaction is controlled by catalyss called enzymes.
Enzymes are proteins that are involved in all metabolic reactions, where they functions as biological catalysts.
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Catalase is an enzyme that catalyses the breakdown of hydrogen perozide to water and oxygen.
hydrogen peroxide ----------> water + oxygen
in the presense of catalase
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How enzymes work
Each type of enzyme has molecules with a very sppecific shape. it has an active site, it is the part of an enzyme molecule to which the substrate temporarily binds.
Firstly the substrate molecule has an complementary shape to the active site of the enzyme. the substrate will fit the active site of the enzyme perfectly, then the enzyme changes the sustrate into new molecules called products.
the short-lived structure that forms as the substrate slots into the enzymes active site has its own namer, called enzyme-substrate complex.
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