IGCSE Practice

Cambridge IGCSE·Co-ordinated Sciences 0654·Biology Enzyme Action

IGCSE Biology — Enzyme action

40 Cambridge IGCSE 0654 questions on enzyme action, across all three components.

About enzyme action on IGCSE 0654

Every Cambridge IGCSE Co-ordinated Sciences 0654 question on enzyme action (Enzymes, Biology), across all three exam components. Theory and alternative-to-practical come with full mark schemes; multiple choice is interactive — click an option to check it.

Theory

Papers 3 & 4 · 4 questions · Structured written questions, each with its full mark scheme.

Enzyme action — theory questions (with mark schemes)

Exercise 1 — IGCSE 0654 Nov 2024 Paper 32 Q7

Cambridge past paperCore10 marks Paper 32Nov 2024
IGCSE 0654 Nov 2024 Paper 32 Question 7 — Enzyme action
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Mark scheme for IGCSE 0654 Nov 2024 Paper 32 Q7

Exercise 2 — IGCSE 0654 Nov 2024 Paper 33 Q7

Cambridge past paperCore10 marks Paper 33Nov 2024
IGCSE 0654 Nov 2024 Paper 33 Question 7 — Enzyme action
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Mark scheme for IGCSE 0654 Nov 2024 Paper 33 Q7

Exercise 3 — IGCSE 0654 Nov 2023 Paper 33 Q7

Cambridge past paperCore11 marks Paper 33Nov 2023
IGCSE 0654 Nov 2023 Paper 33 Question 7 — Enzyme action
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Mark scheme for IGCSE 0654 Nov 2023 Paper 33 Q7

Exercise 4 — IGCSE 0654 Nov 2023 Paper 42 Q7

Cambridge past paperExtended9 marks Paper 42Nov 2023
IGCSE 0654 Nov 2023 Paper 42 Question 7 — Enzyme action
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Mark scheme for IGCSE 0654 Nov 2023 Paper 42 Q7
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Multiple choice

Papers 1 & 2 · 32 questions · Click an option (A–D) to check your answer instantly.

Enzyme action — multiple choice questions

Exercise 1 — IGCSE 0654 Oct/Nov 2025 Paper 11 Q5

Cambridge past paperCore1 mark Paper 11Oct/Nov 2025
IGCSE 0654 Oct/Nov 2025 Paper 11 Question 5 — Enzyme action
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Correct answer: C

Exercise 2 — IGCSE 0654 Oct/Nov 2025 Paper 12 Q3

Cambridge past paperCore1 mark Paper 12Oct/Nov 2025
IGCSE 0654 Oct/Nov 2025 Paper 12 Question 3 — Enzyme action
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Correct answer: D

Exercise 3 — IGCSE 0654 May/June 2025 Paper 12 Q4

Cambridge past paperCore1 mark Paper 12May/June 2025
IGCSE 0654 May/June 2025 Paper 12 Question 4 — Enzyme action
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Correct answer: B

Exercise 4 — IGCSE 0654 March 2025 Paper 12 Q6

Cambridge past paperCore1 mark Paper 12March 2025
IGCSE 0654 March 2025 Paper 12 Question 6 — Enzyme action
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Correct answer: A

Exercise 5 — IGCSE 0654 Oct/Nov 2025 Paper 13 Q3

Cambridge past paperCore1 mark Paper 13Oct/Nov 2025
IGCSE 0654 Oct/Nov 2025 Paper 13 Question 3 — Enzyme action
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Correct answer: D

Exercise 6 — IGCSE 0654 May/June 2025 Paper 13 Q4

Cambridge past paperCore1 mark Paper 13May/June 2025
IGCSE 0654 May/June 2025 Paper 13 Question 4 — Enzyme action
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Correct answer: B

Exercise 7 — IGCSE 0654 Oct/Nov 2025 Paper 21 Q5

Cambridge past paperExtended1 mark Paper 21Oct/Nov 2025
IGCSE 0654 Oct/Nov 2025 Paper 21 Question 5 — Enzyme action
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Correct answer: C
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Alternative to practical

Paper 6 · 4 questions · Experiment-based questions, each with its full mark scheme.

Enzyme action — alternative to practical questions

Exercise 1 — IGCSE 0654 Oct/Nov 2024 Paper 62 Q2

Cambridge past paperPractical Paper 62Oct/Nov 2024
IGCSE 0654 Oct/Nov 2024 Paper 62 Question 2 — Enzyme action
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Mark scheme for IGCSE 0654 Oct/Nov 2024 Paper 62 Q2

Exercise 2 — IGCSE 0654 Oct/Nov 2023 Paper 63 Q1

Cambridge past paperPractical Paper 63Oct/Nov 2023
IGCSE 0654 Oct/Nov 2023 Paper 63 Question 1 — Enzyme action
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Mark scheme for IGCSE 0654 Oct/Nov 2023 Paper 63 Q1

Exercise 3 — IGCSE 0654 May/June 2023 Paper 63 Q2

Cambridge past paperPractical Paper 63May/June 2023
IGCSE 0654 May/June 2023 Paper 63 Question 2 — Enzyme action
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Mark scheme for IGCSE 0654 May/June 2023 Paper 63 Q2

Exercise 4 — IGCSE 0654 Oct/Nov 2023 Paper 63 Q2

Cambridge past paperPractical Paper 63Oct/Nov 2023
IGCSE 0654 Oct/Nov 2023 Paper 63 Question 2 — Enzyme action
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Mark scheme for IGCSE 0654 Oct/Nov 2023 Paper 63 Q2
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More Enzymes subtopics