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Biological molecules — Biology IAL Past Papers
71 papers, 2014–2025 · Unit 1, Unit 2, Unit 3, Unit 6
Every Biology IAL past paper in the collection that assesses biological molecules.
By unit: all units (71) · Unit 1 (32) · Unit 2 (22) · Unit 3 (10) · Unit 6 (7)
Unit 1 : on 32 of 32 papers, 4–27 marks a paper (14 on average)Unit 2 : on 22 of 31 papers, 1–7 marks a paper (3 on average)Unit 3 : on 10 of 32 papers, 2–17 marks a paper (10 on average)Unit 6 : on 7 of 29 papers, 1–4 marks a paper (3 on average)
Read question by question: blind checks found 117 of 120 question parts tagged with the right topic (95% confidence interval 92.9–99.1%).
How topics are found and checked
Papers
Unit 1 · June 2025 · Q2 (b) · 3 marks, Q5 (c(ii)) · 6 marks, Q7 (a, b(ii)) · 4 marks — question paper and mark scheme
Unit 2 · June 2025 · Q4 (a(iii)) · 3 marks — question paper and mark scheme
Unit 3 · June 2025 · Q3 (a(i), a(ii), a(iii), b(i), b(ii), b(iii)) · 16 marks — question paper and mark scheme
Unit 1 · January 2025 · Q1 (a, b, c) · 5 marks, Q7 (c) · 2 marks, Q8 (a) · 4 marks — question paper and mark scheme
Unit 2 · January 2025 · Q3 (a) · 3 marks — question paper and mark scheme
Unit 1 · October 2024 · Q2 (b) · 1 mark, Q6 (b) · 1 mark, Q8 (a) · 3 marks — question paper and mark scheme
Unit 3 · October 2024 · Q1 (a) · 3 marks — question paper and mark scheme
Unit 6 · October 2024 · Q1 (a) · 1 mark — question paper and mark scheme
Unit 1 · June 2024 · Q1 (a, b, c) · 5 marks, Q6 (a, b(i), c(i)) · 8 marks, Q8 (a) · 3 marks — question paper and mark scheme
Unit 2 · June 2024 · Q1 (c(ii)) · 2 marks — question paper and mark scheme
Unit 1 · January 2024 · Q4 (a(i), a(ii), b, c) · 8 marks, Q5 (c(i), c(ii)) · 3 marks, Q8 (a) · 2 marks — question paper and mark scheme
Unit 3 · January 2024 · Q3 (a(i), a(ii), a(iii), a(iv), b(i), b(ii), b(iii)) · 14 marks — question paper and mark scheme
Unit 1 · October 2023 · Q6 (a, b, c(i), c(ii), c(iii)) · 13 marks, Q7 (c(ii), c(iii)) · 5 marks — question paper and mark scheme
Unit 2 · October 2023 · Q3 (b(i)) · 1 mark — question paper and mark scheme
Unit 3 · October 2023 · Q2 (a(i), a(ii), b(i), b(ii), b(iii), b(iv)) · 17 marks — question paper and mark scheme
Unit 6 · October 2023 · Q1 (c) · 3 marks — question paper and mark scheme
Unit 1 · June 2023 · Q3 (a(i), a(ii), b(i), b(ii), b(iii)) · 6 marks, Q5 (c(iii)) · 2 marks, Q6 (a, b, c) · 3 marks — question paper and mark scheme
Unit 2 · June 2023 · Q1 (b(ii), b(iii)) · 2 marks — question paper and mark scheme
Unit 6 · June 2023 · Q1 (b(ii)) · 3 marks — question paper and mark scheme
Unit 1 · January 2023 · Q1 (a, b) · 5 marks, Q2 (a, b(ii)) · 6 marks, Q7 (a) · 2 marks — question paper and mark scheme
Unit 2 · January 2023 · Q1 (b(i)) · 2 marks — question paper and mark scheme
Unit 1 · October 2022 · Q1 (a(ii)) · 1 mark, Q7 (a, b(i), b(ii), c, d, e) · 14 marks — question paper and mark scheme
Unit 3 · October 2022 · Q2 (a(i), a(ii)) · 2 marks — question paper and mark scheme
Unit 1 · June 2022 · Q1 · 5 marks, Q5 (a(i), a(ii), b(i), b(ii)) · 11 marks, Q7 (a(ii), b(ii), c(i)) · 4 marks — question paper and mark scheme
Unit 3 · June 2022 · Q3 (a, b, c, d(i), d(ii), d(iii)) · 16 marks — question paper and mark scheme
Unit 1 · January 2022 · Q1 (a, b(i), b(ii), b(iii)) · 7 marks, Q5 (a(i)) · 3 marks, Q6 (c) · 6 marks, Q8 (a(iii)) · 3 marks — question paper and mark scheme
Unit 2 · January 2022 · Q2 (b) · 4 marks — question paper and mark scheme
Unit 6 · January 2022 · Q1 (b) · 3 marks — question paper and mark scheme
Unit 1 · October 2021 · Q4 (a(i), a(ii), a(iii), b(iii)) · 5 marks — question paper and mark scheme
Unit 2 · October 2021 · Q6 (a(ii)) · 3 marks — question paper and mark scheme
Unit 3 · October 2021 · Q1 (a(i), a(ii), a(iii), a(iv), b(i)) · 11 marks — question paper and mark scheme
Unit 1 · June 2021 · Q1 (a, b) · 7 marks, Q2 (a, b) · 2 marks, Q8 (b) · 4 marks — question paper and mark scheme
Unit 2 · June 2021 · Q1 (a(i), a(ii)) · 2 marks — question paper and mark scheme
Unit 1 · January 2021 · Q3 (a(i), a(ii), a(iii)) · 5 marks, Q4 (a(ii), b(ii)) · 4 marks, Q5 (c(i)) · 2 marks, Q8 (a(i), a(ii)) · 4 marks — question paper and mark scheme
Unit 2 · January 2021 · Q1 (a(i), a(ii)) · 2 marks — question paper and mark scheme
Unit 6 · January 2021 · Q1 (b) · 4 marks — question paper and mark scheme
Unit 1 · October 2020 · Q1 (a, b) · 7 marks, Q5 (b(i), b(iii)) · 3 marks, Q6 (b(ii)) · 5 marks, Q8 (a, b) · 6 marks — question paper and mark scheme
Unit 2 · October 2020 · Q1 (a(ii), b) · 4 marks — question paper and mark scheme
Unit 3 · October 2020 · Q2 (a(i)) · 2 marks — question paper and mark scheme
Unit 6 · October 2020 · Q1 (a) · 2 marks — question paper and mark scheme
Unit 1 · January 2020 · Q3 (a(i), a(ii)) · 2 marks, Q4 (a(i), a(ii), a(iii), a(iv), b) · 10 marks, Q7 (a(ii)) · 3 marks — question paper and mark scheme
Unit 2 · January 2020 · Q6 (c) · 1 mark — question paper and mark scheme
Unit 1 · October 2019 · Q4 (a(i), a(ii), a(iii), b) · 7 marks, Q8 (a) · 3 marks — question paper and mark scheme
Unit 2 · October 2019 · Q1 (a, c) · 4 marks — question paper and mark scheme
Unit 1 · June 2019 · Q1 (a, b(i), b(ii)) · 6 marks, Q2 (a(i), a(ii), a(iii)) · 4 marks, Q5 (a(i), a(ii), b(i)) · 4 marks, Q8 (a, b(i), b(ii), b(iii), c(i), c(ii)) · 13 marks — question paper and mark scheme
Unit 3 · June 2019 · Q2 (a(i), a(ii), a(iii), b, c(i), c(ii)) · 16 marks — question paper and mark scheme
Unit 1 · June 2019 · Q1 (a(i), a(ii), b(i), b(ii), c) · 7 marks, Q3 (a) · 1 mark, Q8 (b(i), b(ii)) · 8 marks — question paper and mark scheme
Unit 1 · January 2019 · Q1 (a(i), a(ii), b(i), b(ii), b(iii), b(iv)) · 6 marks, Q7 (a, b(i), b(ii), c) · 11 marks — question paper and mark scheme
Unit 1 · January 2019 · Q1 (a(i), a(ii), c(i), c(ii)) · 7 marks, Q5 (a, b(ii)) · 5 marks — question paper and mark scheme
Unit 2 · January 2019 · Q2 (c(i), c(ii)) · 4 marks, Q5 (a(i)) · 3 marks — question paper and mark scheme
Unit 3 · January 2019 · Q1 (a) · 2 marks — question paper and mark scheme
Unit 1 · October 2018 · Q1 (a(i), a(ii), b(i), b(ii), c) · 9 marks, Q7 (a) · 3 marks — question paper and mark scheme
Unit 2 · October 2018 · Q5 (b) · 3 marks — question paper and mark scheme
Unit 1 · June 2018 · Q1 (a(i), a(ii), a(iii)) · 3 marks, Q4 (a) · 2 marks, Q8 (c(i), c(ii)) · 6 marks — question paper and mark scheme
Unit 2 · June 2018 · Q7 (a) · 4 marks — question paper and mark scheme
Unit 1 · January 2018 · Q4 (a, c) · 7 marks, Q7 (a) · 2 marks, Q8 (a, b) · 5 marks — question paper and mark scheme
Unit 2 · January 2018 · Q2 (a(ii), a(iii)) · 2 marks — question paper and mark scheme
Unit 1 · October 2017 · Q1 (a, b, c) · 4 marks, Q6 (a(iii), b(ii)) · 3 marks, Q8 (c(ii)) · 3 marks — question paper and mark scheme
Unit 2 · October 2017 · Q1 (a, b) · 7 marks — question paper and mark scheme
Unit 1 · June 2017 · Q4 (a(i), a(ii)) · 6 marks, Q7 (a, b(ii)) · 5 marks — question paper and mark scheme
Unit 1 · January 2017 · Q1 (b(i), b(ii), b(iii)) · 5 marks, Q6 (a(i), a(ii), a(iii)) · 4 marks, Q8 (c(ii), c(iii)) · 5 marks — question paper and mark scheme
Unit 6 · January 2017 · Q3 (a) · 2 marks — question paper and mark scheme
Unit 1 · October 2016 · Q6 (b(i)) · 4 marks — question paper and mark scheme
Unit 2 · October 2016 · Q5 (b) · 4 marks — question paper and mark scheme
Unit 1 · January 2016 · Q1 (a(i), a(ii), b(i), b(ii)) · 5 marks, Q4 (a(ii), a(iii)) · 2 marks, Q5 (b, c) · 7 marks — question paper and mark scheme
Unit 2 · January 2016 · Q3 (a) · 4 marks — question paper and mark scheme
Unit 1 · January 2015 · Q2 (a(i), a(ii), b, c) · 9 marks, Q4 (a, c) · 5 marks — question paper and mark scheme
Unit 1 · June 2014 · Q4 (a(i), a(ii), b(i), b(ii)) · 9 marks — question paper and mark scheme
Unit 2 · June 2014 · Q2 (b(iii)) · 3 marks — question paper and mark scheme
Unit 1 · January 2014 · Q1 (a(i), b) · 4 marks, Q3 (b) · 4 marks, Q6 (a, b) · 6 marks, Q7 (a(ii), b(ii)) · 3 marks — question paper and mark scheme
Unit 2 · January 2014 · Q4 (a(i), a(ii)) · 2 marks — question paper and mark scheme
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