Biology B2 Enzymes 3.1 - 3.6 4.0 / 5 based on 4 ratings ? BiologyEnzymes and digestionGCSECIE Created by: Emily EllcomeCreated on: 24-03-13 15:58 What is a protein? A protein is a long chain of amino acids 1 of 12 What do proteins do? Proteins act as structural components of tissues, as hormones, as antibodies and as catalysts 2 of 12 What is an enzyme? Enzymes are biological catalysts made of proteins. The amino acid chains are folded to make the active site 3 of 12 How does increasing the temperature affect your enzymes? Enzyme activity is affected by temperature and pH causing your enzymes to denature 4 of 12 Why does a change in pH affect your enzymes? It can affect the shape of the active site causing it to denature. 5 of 12 Where are your digestive enzymes made? Produced in glands and in the lining of the gut. 6 of 12 How are enzymes involved in the digestion of food? Different enzymes catalyse the breakdown of carbohydrates, proteins and fats into smaller molecules. 7 of 12 Why does your stomach contain hydrochloric acid? Enzymes in the stomach work best in acid conditions. 8 of 12 What is bile and why is it so important in digestion? Bile produced in the liver neutralises acid and emulsifies fats. 9 of 12 How do biological detergents work? Biological detergents may contain proteases and lipases 10 of 12 Which enzymes are used in the food industry? Proteases, carbohydrases, and isomorase are all used in the food industry. 11 of 12 Can doctors use enzymes to keep us healthy? Yes, enzymes can be produced industrially, both to diagnose and treat diseases. 12 of 12
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