Enzymes 0.0 / 5 ? BiologyEnzymes and digestionGCSEAQA Created by: HopeCreated on: 17-04-14 18:13 What are proteins made of? Long chains of amino acids 1 of 26 What would happen if the shape of an enzyme was to change? It would become denatured 2 of 26 Complete this sentence: Proteins are polymers, They are built up... In cells when monomers called amino acids join together 3 of 26 What can proteins act as? Structural components of tissues such as muscles, Hormones, Antibodies and Catalysts 4 of 26 What are catalysts? They increase the rate of chemical reactions. 5 of 26 What are enzymes? Biological catalysts and are made of proteins 6 of 26 How do enzymes work? On the enzyme there is an active site where the substrate molecule will fit to form the reaction 7 of 26 Complete this sentence: The substrate has a.... Complementary shape that fits the active site 8 of 26 How do enzymes become denatured? Temperature and PH 9 of 26 What temperature do enzymes like to work? Enzymes are more likely to find a substrate at 37 degrees 10 of 26 Why are peoples bodys temperature 37 degrees? It is an enzymes optimum temperature 11 of 26 How does PH affect enzymes? All enzymes work in different ph's 12 of 26 How do enzymes break down starch With amalayse into glucose 13 of 26 How do enzymes breaj down protiens With protease into amino acids 14 of 26 How do enzymes break down lipids With lipase into fatty acids and glycerol 15 of 26 Where is amalyase produced? In the salivary glands, pancreas and small intestine so it catalyses the breakdown in the mouth and small intestine 16 of 26 Where is protease produced and where does it work? In the stomach, pancreas and small intestine so it catalyses the breakdown in the stomach and small intestine 17 of 26 Where is lipase produced and where does it work? In the pancreas and small intestine so it catalyses the breakdown in the small intestine 18 of 26 What other substances are involved in digestion? Stomach acids and bile 19 of 26 What is stomach acid? Hydrochloric acid 20 of 26 Why does stomach acid help with digestion? Because it makes the stomach acidic which is the best conditions for the enxymes in the stomach to work in 21 of 26 What does bile do? Makes the food from the stomach which is acidic more alkali which is the conditions enxymes work best in the small intestine 22 of 26 Where is bile produced and stored? It is produced in the liver and stored in the gall bladder 23 of 26 How does industry use enzymes? Baby food, biologic detergents, sugar syrup and fructose syrup 24 of 26 What are the advantages of using enzymes in industry? They work at low temperatures, work at low pressues, efficent and are often cheaper to run 25 of 26 What are the disadvantages of using enzymes in industry? Can be denatured by high temperatures, sensitive to change in ph 26 of 26
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