OCR Enzymes

12345678910111213141516171819202122232425262728293031323334353637
Across
  1. 1. this factor can prevent the enzyme working at its maximum rate
  2. 3. these bonds, along with hydrogen bonds, are affected by pH changes
  3. 4. this enzyme won't catalyse a reaction
  4. 6. each enzyme only catalyses one type of reaction
  5. 9. Q10= temperature _____________
  6. 10. where the substrate binds
  7. 11. one model of enzyme action
  8. 12. some of these act as coenzymes
  9. 13. prosthetic group in carbonic anhydrase
  10. 14. keeps the pH constant in an enzyme reaction
  11. 16. e.g. for pepsin this pH is pH2
  12. 17. one model of enzyme action
  13. 20. breaking down large molecules
  14. 22. site for non-competitive inhibitor binding
  15. 24. prosthetic group in haemoglobin
  16. 26. lowered by enzymes
  17. 28. cofactor that is covalently bound to the enzyme
  18. 29. describes the shapes of the active site and the substrate
  19. 31. this type of inhibition involves the first enzyme in a pathway
  20. 33. helps an enzyme catalyse a reaction
  21. 34. this is changed on some R groups if pH changes
  22. 35. forms covalent bonds with the enzyme and lowers the rate of reaction
Down
  1. 2. inhibitor whose effects aren't affected by increasing substrate concentration
  2. 5. a common irreversible non-competitive inhibitor
  3. 7. e.g. amylase
  4. 8. a series of enzyme-catalysed reactions
  5. 10. building up a larger molecule
  6. 15. biological catalyst
  7. 18. inhibits HMG-CoA reductase competitively
  8. 19. speeds up the rate of a reaction
  9. 20. inhibitor that binds the active site instead of the substrate
  10. 21. organic non-protein molecule that binds temporarily to an enzyme with the substrate
  11. 23. e.g. catalase
  12. 25. affected by temperature in enzyme reactions
  13. 27. formes as part of an enzyme-catalysed reaction
  14. 28. produced by the enzyme reaction
  15. 30. how quickly a product is produced or a substrate is used up
  16. 32. inhibitor using hydrogen or ionic bonds to bind the enzyme
  17. 36. binds to the active site
  18. 37. complex formed as part of an enzyme-catalysed reaction