B2 Enzymes 0.0 / 5 ? BiologyEnzymes and digestionGCSEAQA Created by: EllenMIWCreated on: 31-12-15 19:23 Advantages of enzymes Speed up reactions, used over and over again, stops use of expensive, energy-demanding equipment 1 of 18 Disadvantages of enzymes Costly to produce, many denatured at high temps, some people are allergic 2 of 18 Proteins Made up of long chains of amino acids which are folded to produce a specific shape that allows other molecules to fit into the protein 3 of 18 Proteins act as... Catalysts,structural components of tissues and muscles, antibodies, hormones 4 of 18 Enzymes are... Biological catalysts and proteins 5 of 18 High temperatures.....the enzyme Change the shape of 6 of 18 Different enzymes work best at... Different pH values 7 of 18 Path of digestive enzymes Produced in lining of gut, move into gut where they come into contact with food molecules 8 of 18 What do digestive enzymes do? Catalyse the breakdown of large molecules into smaller molecules 9 of 18 Amylase Produced in salivary glands, pancreas and small intestine, catalyses breakdown of starch into sugars in mouth and small intestine 10 of 18 Protease Made in stomach, pancreas and small intestine, catalyses breakdown of proteins into amino acids in stomach and small intestine 11 of 18 Lipase Made in pancreas and small intestine, catalyses breakdown of lipids into fatty acids and glycerol in small intestine 12 of 18 Stomach enzymes work best in.... because.... Acidic conditions, the stomach produces hydrochloric acid 13 of 18 Small intestine enzymes work best in... because... Acidic conditions, bile neutralises stomach acid 14 of 18 Biological detergents May contain proteases and lipases to break down stains, are more effective at low temps than other detergents 15 of 18 Baby foods Contain proteases to 'pre-digest' the food 16 of 18 Carbohydrases Used to convert starch into sugar syrup 17 of 18 Isomerase Used to convert glucose syrup into fructose syrup, which is much sweeter so less can be used in slimming foods 18 of 18
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