Enzymes 0.0 / 5 ? ScienceBiologyGCSEAQA Created by: SaskiaPCreated on: 08-11-15 11:54 Enzymes speed up digestion, what does this make them? (9) Catalysts 1 of 45 Living things have thousands of .................. going on inside of them (8,9) Chemical Reactions 2 of 45 Usually chemical reactions can happen more quickly if what is raised? (11) Temperature 3 of 45 Living things produce what to act as biological catalysts? (7) Enzymes 4 of 45 Enzymes only speed up chemical reations that are what? (6) Useful 5 of 45 What are enzymes? (8) Proteins 6 of 45 All proteins are made up of chains of what? (5,5) Amino Acids 7 of 45 Chemical reations involve things being what? (5,5) Split Apart 8 of 45 Chemical reactions involve things being what? (6,8) Joined Together 9 of 45 Usually, enzymes only catalyse how many reactions? (3) One 10 of 45 If a substance doesn't fit the enzyme's shape, will the reaction be catalysed? (2) No 11 of 45 A higher temperature, does what to the rate of enzyme-catalysed reactions? (8) Increases 12 of 45 If it gets to hot bonds holding the ezyme together will break, it is said to be what? (9) Denatured 13 of 45 Enzymes in the human body normally work at what degree celcius? (11) Thirtyseven 14 of 45 If the pH is too high or low, it interferes with the bonds making the enzyme become what? (9) Denatured 15 of 45 All enzymes have a what pH? (7) Optimum 16 of 45 A neutral pH is what? (5) Seven 17 of 45 Pepsin in the stomach works best at what pH? (3) Two 18 of 45 Pepsin is suited to what type of conditions? (6) Acidic 19 of 45 Which type of enzymes break down big molecules into smaller ones? (9) Digestive 20 of 45 One large molecule. (4) Fats 21 of 45 A large molecule. (6) Starch 22 of 45 Another large molecule. (8) Proteins 23 of 45 A smaller molecule. (5) Sugar 24 of 45 Smaller molecule. (5,5) Amino Acids 25 of 45 Smaller Molecule. (8) Glycerol 26 of 45 Another smaller molecule. (5,5) Fatty Acids 27 of 45 Which enzyme converts starch into sugars? (7) Amylase 28 of 45 Which enzyme converts proteins into amino acids? (8) Protease 29 of 45 Which enzyme converts lipids into glycerol aand fatty acids? (6) Lipase 30 of 45 Enzymes are produced by what type of cell in glands and hut lining? (11) Specialised 31 of 45 In which gland is is amylase enzyme produced in the saliva? (8) Salivary 32 of 45 The oesophagus is also known as what? (6) Gullet 33 of 45 The liver produces what? (4) Bile 34 of 45 Bile does what to stomach acid? (11) Neutralises 35 of 45 Bile does what to fats? (10) Emulsifies 36 of 45 What does the stomach do to food with its muscular walls? (7) Pummels 37 of 45 Pepsin is produced in the stomach, what type of enzyme is pepsin? (7) Protease 38 of 45 The stomach produces what type of acid to kill bacteria and produce the right pH? (12) Hydrochloric 39 of 45 Where is bile stored before release into the small intestines? (4,7) Gall Bladder 40 of 45 The pancreas produces how many enzymes? (5) Three 41 of 45 The small intestine produces protease, amylase and lipase to complete what? (9) Digestion 42 of 45 From here, where is digested food absorbed into? (5) Blood 43 of 45 Excess what is absored from which intestine, large or small? (5) Large 44 of 45 Faeces are stored where? (6) Rectum 45 of 45
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