The shape of an enzyme is vital for the enzyme’s function. High temperatures change the shape.
Different enzymes work best at different pH values.
Some enzymes work outside the body cells.The digestive enzymes are produced by specialised cells in glands and in the lining of the gut. The enzymes then pass out of the cells into the gut where they come into contact with food molecules. They catalyse the breakdown of large molecules into smaller molecules.
The enzyme amylase is produced in the salivary glands, the pancreas and the small intestine. This enzyme catalyses the breakdown of starch into sugars in the mouth and small intestine.
Protease enzymes are produced by the stomach, the pancreas and the small intestine.These enzymes catalyse the breakdown of proteins into amino acids in the stomach and the small intestine.
Lipase enzymes are produced by the pancreas and small intestine. These enzymes catalyse the breakdown of lipids (fats and oils) into fatty acids and glycerol in the small intestine.
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