Biology - Enzymes in the body 0.0 / 5 ? BiologyEnzymes and digestionGCSEAQA Created by: greendayjakeCreated on: 13-06-19 19:21 Enzyme A biological catalyst which speed up reactions. 1 of 14 Substrate They collide with enzymes to start the reaction 2 of 14 Lock and key theory If a substarte fits perfectly into an Enzyme's active site a reaction will take place 3 of 14 A biological product What is made after the biological reaction 4 of 14 What are enzymes made of? Protein 5 of 14 What is the optimum temperature for an enzyme? Body temperature (37°C) 6 of 14 If an enzyme is too hot it will... Denature, the substrates will not fit in the active site. A reaction will not take place. 7 of 14 Lipase, where is it found and what does it break down? Found in the pancreas and breaks down fat 8 of 14 Protease, where is it found and what does it break down? Found in the pancreas and breaks down protein 9 of 14 Pepsin, where is it found and what does it break down? Found in the stomach and breaks down protein 10 of 14 What solution do you use to find starch in foods? Iodine solution, If present the solution will turn black 11 of 14 What solution do you use to find sugars in foods? Benedict solution, If present the solution will go yellow, green, brick red (depending on the level of sugar) 12 of 14 What solution do you use to find protein in foods? Buiret solution, if present the solution will turn pink/purple 13 of 14 What liquid is used to find fats in foods? Ethanol (Alcohol), if present solution will become milk like 14 of 14
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