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How enzymes work past paper questions

Biology 9700 · Enzymes. Active site, enzyme–substrate complex, lock and key, induced fit

In Cambridge A Level Biology 9700, How enzymes work came up in 50 of the 84 papers on Paperstreak, for about 2 marks a paper when it does. It last came up in October/November 2025.

Often set with Factors affecting rate, Inhibitors, Amino acids and protein structure, Fluid mosaic model.

57 questions, newest first

1. 9700/11/O/N/25 Question 13 · 1 mark
2. 9700/11/O/N/25 Question 14 · 1 mark
3. 9700/12/O/N/25 Question 13 · 1 mark
4. 9700/13/O/N/25 Question 15 · 1 mark
5. 9700/21/O/N/25 Question 3 part (a) · 2 marks
6. 9700/23/O/N/25 Question 3 part (a) · 3 marks
7. 9700/11/M/J/25 Question 15 · 1 mark
8. 9700/12/M/J/25 Question 12 · 1 mark
9. 9700/12/M/J/25 Question 13 · 1 mark
10. 9700/23/M/J/25 Question 3 part (b) · 3 marks
11. 9700/12/F/M/25 Question 13 · 1 mark
12. 9700/11/M/J/24 Question 14 · 1 mark
13. 9700/12/M/J/24 Question 8 · 1 mark
14. 9700/13/M/J/24 Question 10 · 1 mark
15. 9700/22/M/J/24 Question 3 part (a) · 3 marks
16. 9700/23/M/J/24 Question 4 part (b) · 5 marks
17. 9700/22/F/M/24 Question 1 part (c(ii)) · 3 marks
18. 9700/11/O/N/23 Question 13 · 1 mark
19. 9700/12/O/N/23 Question 12 · 1 mark
20. 9700/13/O/N/23 Question 14 · 1 mark
21. 9700/13/O/N/23 Question 15 · 1 mark
22. 9700/22/O/N/23 Question 2 part (b) · 1 mark
23. 9700/23/O/N/23 Question 2 part (b) · 4 marks
24. 9700/11/M/J/23 Question 12 · 1 mark
25. 9700/12/M/J/23 Question 13 · 1 mark
26. 9700/13/M/J/23 Question 14 · 1 mark
27. 9700/22/M/J/23 Question 2 part (c) · 1 mark
28. 9700/12/F/M/23 Question 14 · 1 mark
29. 9700/12/F/M/23 Question 15 · 1 mark
30. 9700/11/O/N/22 Question 12 · 1 mark
31. 9700/11/O/N/22 Question 13 · 1 mark
32. 9700/12/O/N/22 Question 12 · 1 mark
33. 9700/13/O/N/22 Question 12 · 1 mark
34. 9700/21/O/N/22 Question 4 part (c) · 2 marks
35. 9700/13/M/J/22 Question 12 · 1 mark
36. 9700/21/M/J/22 Question 3 part (a) · 2 marks
37. 9700/22/M/J/22 Question 4 part (b) · 1 mark
38. 9700/23/M/J/22 Question 5 part (a) · 2 marks
39. 9700/11/O/N/21 Question 12 · 1 mark
40. 9700/12/O/N/21 Question 14 · 1 mark
41. 9700/13/O/N/21 Question 14 · 1 mark
42. 9700/11/M/J/21 Question 14 · 1 mark
43. 9700/12/M/J/21 Question 12 · 1 mark
44. 9700/12/M/J/21 Question 13 · 1 mark
45. 9700/21/M/J/21 Question 4 part (a) · 3 marks
46. 9700/23/M/J/21 Question 3 part (c(i)) · 3 marks
47. 9700/22/F/M/21 Question 2 part (c) · 1 mark
48. 9700/11/O/N/20 Question 13 · 1 mark
49. 9700/11/O/N/20 Question 14 · 1 mark
50. 9700/12/O/N/20 Question 12 · 1 mark
51. 9700/13/O/N/20 Question 13 · 1 mark
52. 9700/21/O/N/20 Question 2 part (b(i)) · 1 mark
53. 9700/22/O/N/20 Question 5 part (b) · 2 marks
54. 9700/23/O/N/20 Question 5 part (c) · 5 marks
55. 9700/11/M/J/20 Question 12 · 1 mark
56. 9700/22/M/J/20 Question 5 part (b(iii)) · 4 marks
57. 9700/23/M/J/20 Question 4 part (e(iii)) · 1 mark

More in Enzymes: Measuring enzyme activity, Factors affecting rate, Vmax and Km, Inhibitors, Immobilised enzymes.

Questions and mark schemes from Cambridge International past papers. Paperstreak isn't affiliated with Cambridge.