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Edexcel International A Level Biology Past Papers

Official question papers, mark schemes and examiner reports.

125 papers21 exam sessionsFree to download

EdexcelInternational A LevelBiologyAll specificationsAll tiers

June 2026

12 papersLatest series

AS tier· 6

Unit 1
Molecules, Diet, Transport and Health
WBI11/01Spec YBI11
- June 2026
- AS tier
- Question paper
- Mark scheme
- Examiner report not available
Open paper
Unit 1
Molecules, Diet, Transport and Health (Regional)
WBI11/01ASpec YBI11
- June 2026
- AS tier
- Question paper
- Mark scheme
- Examiner report not available
Open paper
Unit 2
Cells, Development, Biodiversity and Conservation
WBI12/01Spec YBI11
- June 2026
- AS tier
- Question paper
- Mark scheme
- Examiner report not available
Open paper
Unit 2
Cells, Development, Biodiversity and Conservation (Regional)
WBI12/01ASpec YBI11
- June 2026
- AS tier
- Question paper
- Mark scheme
- Examiner report not available
Open paper
Unit 3
Practical Skills in Biology I
WBI13/01Spec YBI11
- June 2026
- AS tier
- Question paper
- Mark scheme
- Examiner report not available
Open paper
Unit 3
Practical Skills in Biology I (Regional)
WBI13/01ASpec YBI11
- June 2026
- AS tier
- Question paper
- Mark scheme
- Examiner report not available
Open paper

A2 tier· 6

Unit 4
Energy, Environment, Microbiology and Immunity
WBI14/01Spec YBI11
- June 2026
- A2 tier
- Question paper
- Mark scheme
- Examiner report not available
Open paper
Unit 4
Energy, Environment, Microbiology and Immunity (Regional)
WBI14/01ASpec YBI11
- June 2026
- A2 tier
- Question paper
- Mark scheme
- Examiner report not available
Open paper
Unit 5
Respiration, Internal Environment, Coordination and Gene Technology
WBI15/01Spec YBI11
- June 2026
- A2 tier
- Question paper
- Mark scheme
- Examiner report not available
Open paper
Unit 5
Respiration, Internal Environment, Coordination and Gene Technology (Regional)
WBI15/01ASpec YBI11
- June 2026
- A2 tier
- Question paper
- Mark scheme
- Examiner report not available
Open paper
Unit 6
Practical Skills in Biology II
WBI16/01Spec YBI11
- June 2026
- A2 tier
- Question paper
- Mark scheme
- Examiner report not available
Open paper
Unit 6
Practical Skills in Biology II (Regional)
WBI16/01ASpec YBI11
- June 2026
- A2 tier
- Question paper
- Mark scheme
- Examiner report not available
Open paper

October 2025

12 papers

AS tier· 6

Unit 1
Molecules, Diet, Transport and Health
WBI11/01Spec YBI11
- October 2025
- AS tier
- Question paper
- Mark scheme
- Examiner report not available
Open paper
Unit 1
Molecules, Diet, Transport and Health (Regional)
WBI11/01ASpec YBI11
- October 2025
- AS tier
- Question paper
- Mark scheme
- Examiner report not available
Open paper
Unit 2
Cells, Development, Biodiversity and Conservation
WBI12/01Spec YBI11
- October 2025
- AS tier
- Question paper
- Mark scheme
- Examiner report not available
Open paper
Unit 2
Cells, Development, Biodiversity and Conservation (Regional)
WBI12/01ASpec YBI11
- October 2025
- AS tier
- Question paper
- Mark scheme
- Examiner report not available
Open paper
Unit 3
Practical Skills in Biology I
WBI13/01Spec YBI11
- October 2025
- AS tier
- Question paper
- Mark scheme
- Examiner report not available
Open paper
Unit 3
Practical Skills in Biology I (Regional)
WBI13/01ASpec YBI11
- October 2025
- AS tier
- Question paper
- Mark scheme
- Examiner report not available
Open paper

A2 tier· 6

Unit 4
Energy, Environment, Microbiology and Immunity
WBI14/01Spec YBI11
- October 2025
- A2 tier
- Question paper
- Mark scheme
- Examiner report not available
Open paper
Unit 4
Energy, Environment, Microbiology and Immunity (Regional)
WBI14/01ASpec YBI11
- October 2025
- A2 tier
- Question paper
- Mark scheme
- Examiner report not available
Open paper
Unit 5
Respiration, Internal Environment, Coordination and Gene Technology
WBI15/01Spec YBI11
- October 2025
- A2 tier
- Question paper
- Mark scheme
- Examiner report not available
Open paper
Unit 5
Respiration, Internal Environment, Coordination and Gene Technology (Regional)
WBI15/01ASpec YBI11
- October 2025
- A2 tier
- Question paper
- Mark scheme
- Examiner report not available
Open paper
Unit 6
Practical Skills in Biology II
WBI16/01Spec YBI11
- October 2025
- A2 tier
- Question paper
- Mark scheme
- Examiner report not available
Open paper
Unit 6
Practical Skills in Biology II (Regional)
WBI16/01ASpec YBI11
- October 2025
- A2 tier
- Question paper
- Mark scheme
- Examiner report not available
Open paper

June 2025

6 papers

AS tier· 3

Unit 1
Molecules, Diet, Transport and Health
WBI11/01Spec YBI11
- June 2025
- AS tier
Open paper
Unit 2
Cells, Development, Biodiversity and Conservation
WBI12/01Spec YBI11
- June 2025
- AS tier
Open paper
Unit 3
Practical Skills in Biology I
WBI13/01Spec YBI11
- June 2025
- AS tier
Open paper

A2 tier· 3

Unit 4
Energy, Environment, Microbiology and Immunity
WBI14/01Spec YBI11
- June 2025
- A2 tier
Open paper
Unit 5
Respiration, Internal Environment, Coordination and Gene Technology
WBI15/01Spec YBI11
- June 2025
- A2 tier
Open paper
Unit 6
Practical Skills in Biology II
WBI16/01Spec YBI11
- June 2025
- A2 tier
Open paper

Show 18 earlier sessionsJanuary 2025 – January 2019 · 95 papers

January 2025

6 papers

AS tier· 3

Unit 1
Molecules, Diet, Transport and Health
WBI11/01Spec YBI11
- January 2025
- AS tier
Open paper
Unit 2
Cells, Development, Biodiversity and Conservation
WBI12/01Spec YBI11
- January 2025
- AS tier
Open paper
Unit 3
Practical Skills in Biology I
WBI13/01Spec YBI11
- January 2025
- AS tier
Open paper

A2 tier· 3

Unit 4
Energy, Environment, Microbiology and Immunity
WBI14/01Spec YBI11
- January 2025
- A2 tier
Open paper
Unit 5
Respiration, Internal Environment, Coordination and Gene Technology
WBI15/01Spec YBI11
- January 2025
- A2 tier
Open paper
Unit 6
Practical Skills in Biology II
WBI16/01Spec YBI11
- January 2025
- A2 tier
Open paper

October 2024

6 papers

AS tier· 3

Unit 1
Molecules, Diet, Transport and Health
WBI11/01Spec YBI11
- October 2024
- AS tier
Open paper
Unit 2
Cells, Development, Biodiversity and Conservation
WBI12/01Spec YBI11
- October 2024
- AS tier
Open paper
Unit 3
Practical Skills in Biology I
WBI13/01Spec YBI11
- October 2024
- AS tier
Open paper

A2 tier· 3

Unit 4
Energy, Environment, Microbiology and Immunity
WBI14/01Spec YBI11
- October 2024
- A2 tier
Open paper
Unit 5
Respiration, Internal Environment, Coordination and Gene Technology
WBI15/01Spec YBI11
- October 2024
- A2 tier
Open paper
Unit 6
Practical Skills in Biology II
WBI16/01Spec YBI11
- October 2024
- A2 tier
Open paper

June 2024

6 papers

AS tier· 3

Unit 1
Molecules, Diet, Transport and Health
WBI11/01Spec YBI11
- June 2024
- AS tier
Open paper
Unit 2
Cells, Development, Biodiversity and Conservation
WBI12/01Spec YBI11
- June 2024
- AS tier
Open paper
Unit 3
Practical Skills in Biology I
WBI13/01Spec YBI11
- June 2024
- AS tier
Open paper

A2 tier· 3

Unit 4
Energy, Environment, Microbiology and Immunity
WBI14/01Spec YBI11
- June 2024
- A2 tier
Open paper
Unit 5
Respiration, Internal Environment, Coordination and Gene Technology
WBI15/01Spec YBI11
- June 2024
- A2 tier
Open paper
Unit 6
Practical Skills in Biology II
WBI16/01Spec YBI11
- June 2024
- A2 tier
Open paper

January 2024

6 papers

AS tier· 3

Unit 1
Molecules, Diet, Transport and Health
WBI11/01Spec YBI11
- January 2024
- AS tier
Open paper
Unit 2
Cells, Development, Biodiversity and Conservation
WBI12/01Spec YBI11
- January 2024
- AS tier
Open paper
Unit 3
Practical Skills in Biology I
WBI13/01Spec YBI11
- January 2024
- AS tier
Open paper

A2 tier· 3

Unit 4
Energy, Environment, Microbiology and Immunity
WBI14/01Spec YBI11
- January 2024
- A2 tier
Open paper
Unit 5
Respiration, Internal Environment, Coordination and Gene Technology
WBI15/01Spec YBI11
- January 2024
- A2 tier
Open paper
Unit 6
Practical Skills in Biology II
WBI16/01Spec YBI11
- January 2024
- A2 tier
Open paper

October 2023

6 papers

AS tier· 3

Unit 1
Molecules, Diet, Transport and Health
WBI11/01Spec YBI11
- October 2023
- AS tier
Open paper
Unit 2
Cells, Development, Biodiversity and Conservation
WBI12/01Spec YBI11
- October 2023
- AS tier
Open paper
Unit 3
Practical Skills in Biology I
WBI13/01Spec YBI11
- October 2023
- AS tier
Open paper

A2 tier· 3

Unit 4
Energy, Environment, Microbiology and Immunity
WBI14/01Spec YBI11
- October 2023
- A2 tier
Open paper
Unit 5
Respiration, Internal Environment, Coordination and Gene Technology
WBI15/01Spec YBI11
- October 2023
- A2 tier
Open paper
Unit 6
Practical Skills in Biology II
WBI16/01Spec YBI11
- October 2023
- A2 tier
Open paper

June 2023

6 papers

AS tier· 3

Unit 1
Molecules, Diet, Transport and Health
WBI11/01Spec YBI11
- June 2023
- AS tier
Open paper
Unit 2
Cells, Development, Biodiversity and Conservation
WBI12/01Spec YBI11
- June 2023
- AS tier
Open paper
Unit 3
Practical Skills in Biology I
WBI13/01Spec YBI11
- June 2023
- AS tier
Open paper

A2 tier· 3

Unit 4
Energy, Environment, Microbiology and Immunity
WBI14/01Spec YBI11
- June 2023
- A2 tier
Open paper
Unit 5
Respiration, Internal Environment, Coordination and Gene Technology
WBI15/01Spec YBI11
- June 2023
- A2 tier
Open paper
Unit 6
Practical Skills in Biology II
WBI16/01Spec YBI11
- June 2023
- A2 tier
Open paper

January 2023

6 papers

AS tier· 3

Unit 1
Molecules, Diet, Transport and Health
WBI11/01Spec YBI11
- January 2023
- AS tier
Open paper
Unit 2
Cells, Development, Biodiversity and Conservation
WBI12/01Spec YBI11
- January 2023
- AS tier
Open paper
Unit 3
Practical Skills in Biology I
WBI13/01Spec YBI11
- January 2023
- AS tier
Open paper

A2 tier· 3

Unit 4
Energy, Environment, Microbiology and Immunity
WBI14/01Spec YBI11
- January 2023
- A2 tier
Open paper
Unit 5
Respiration, Internal Environment, Coordination and Gene Technology
WBI15/01Spec YBI11
- January 2023
- A2 tier
Open paper
Unit 6
Practical Skills in Biology II
WBI16/01Spec YBI11
- January 2023
- A2 tier
Open paper

October 2022

6 papers

AS tier· 3

Unit 1
Molecules, Diet, Transport and Health
WBI11/01Spec YBI11
- October 2022
- AS tier
Open paper
Unit 2
Cells, Development, Biodiversity and Conservation
WBI12/01Spec YBI11
- October 2022
- AS tier
Open paper
Unit 3
Practical Skills in Biology I
WBI13/01Spec YBI11
- October 2022
- AS tier
Open paper

A2 tier· 3

Unit 4
Energy, Environment, Microbiology and Immunity
WBI14/01Spec YBI11
- October 2022
- A2 tier
Open paper
Unit 5
Respiration, Internal Environment, Coordination and Gene Technology
WBI15/01Spec YBI11
- October 2022
- A2 tier
Open paper
Unit 6
Practical Skills in Biology II
WBI16/01Spec YBI11
- October 2022
- A2 tier
Open paper

June 2022

6 papers

AS tier· 3

Unit 1
Molecules, Diet, Transport and Health
WBI11/01Spec YBI11
- June 2022
- AS tier
Open paper
Unit 2
Cells, Development, Biodiversity and Conservation
WBI12/01Spec YBI11
- June 2022
- AS tier
Open paper
Unit 3
Practical Skills in Biology I
WBI13/01Spec YBI11
- June 2022
- AS tier
Open paper

A2 tier· 3

Unit 4
Energy, Environment, Microbiology and Immunity
WBI14/01Spec YBI11
- June 2022
- A2 tier
Open paper
Unit 5
Respiration, Internal Environment, Coordination and Gene Technology
WBI15/01Spec YBI11
- June 2022
- A2 tier
Open paper
Unit 6
Practical Skills in Biology II
WBI16/01Spec YBI11
- June 2022
- A2 tier
Open paper

January 2022

6 papers

AS tier· 3

Unit 1
Molecules, Diet, Transport and Health
WBI11/01Spec YBI11
- January 2022
- AS tier
Open paper
Unit 2
Cells, Development, Biodiversity and Conservation
WBI12/01Spec YBI11
- January 2022
- AS tier
Open paper
Unit 3
Practical Skills in Biology I
WBI13/01Spec YBI11
- January 2022
- AS tier
Open paper

A2 tier· 3

Unit 4
Energy, Environment, Microbiology and Immunity
WBI14/01Spec YBI11
- January 2022
- A2 tier
Open paper
Unit 5
Respiration, Internal Environment, Coordination and Gene Technology
WBI15/01Spec YBI11
- January 2022
- A2 tier
Open paper
Unit 6
Practical Skills in Biology II
WBI16/01Spec YBI11
- January 2022
- A2 tier
Open paper

October 2021

6 papers

AS tier· 3

Unit 1
Molecules, Diet, Transport and Health
WBI11/01Spec YBI11
- October 2021
- AS tier
Open paper
Unit 2
Cells, Development, Biodiversity and Conservation
WBI12/01Spec YBI11
- October 2021
- AS tier
Open paper
Unit 3
Practical Skills in Biology I
WBI13/01Spec YBI11
- October 2021
- AS tier
Open paper

A2 tier· 3

Unit 4
Energy, Environment, Microbiology and Immunity
WBI14/01Spec YBI11
- October 2021
- A2 tier
Open paper
Unit 5
Respiration, Internal Environment, Coordination and Gene Technology
WBI15/01Spec YBI11
- October 2021
- A2 tier
Open paper
Unit 6
Practical Skills in Biology II
WBI16/01Spec YBI11
- October 2021
- A2 tier
Open paper

June 2021

6 papers

AS tier· 3

Unit 1
Molecules, Diet, Transport and Health
WBI11/01Spec YBI11
- June 2021
- AS tier
- Question paper
- Mark scheme
- Examiner report not available
Open paper
Unit 2
Cells, Development, Biodiversity and Conservation
WBI12/01Spec YBI11
- June 2021
- AS tier
- Question paper
- Mark scheme
- Examiner report not available
Open paper
Unit 3
Practical Skills in Biology I
WBI13/01Spec YBI11
- June 2021
- AS tier
- Question paper
- Mark scheme
- Examiner report not available
Open paper

A2 tier· 3

Unit 4
Energy, Environment, Microbiology and Immunity
WBI14/01Spec YBI11
- June 2021
- A2 tier
- Question paper
- Mark scheme
- Examiner report not available
Open paper
Unit 5
Respiration, Internal Environment, Coordination and Gene Technology
WBI15/01Spec YBI11
- June 2021
- A2 tier
- Insert
- Question paper
- Mark scheme
- Examiner report not available
Open paper
Unit 6
Practical Skills in Biology II
WBI16/01Spec YBI11
- June 2021
- A2 tier
- Question paper
- Mark scheme
- Examiner report not available
Open paper

January 2021

6 papers

AS tier· 3

Unit 1
Molecules, Diet, Transport and Health
WBI11/01Spec YBI11
- January 2021
- AS tier
Open paper
Unit 2
Cells, Development, Biodiversity and Conservation
WBI12/01Spec YBI11
- January 2021
- AS tier
Open paper
Unit 3
Practical Skills in Biology I
WBI13/01Spec YBI11
- January 2021
- AS tier
Open paper

A2 tier· 3

Unit 4
Energy, Environment, Microbiology and Immunity
WBI14/01Spec YBI11
- January 2021
- A2 tier
Open paper
Unit 5
Respiration, Internal Environment, Coordination and Gene Technology
WBI15/01Spec YBI11
- January 2021
- A2 tier
Open paper
Unit 6
Practical Skills in Biology II
WBI16/01Spec YBI11
- January 2021
- A2 tier
Open paper

October 2020

6 papers

AS tier· 3

Unit 1
Molecules, Diet, Transport and Health
WBI11/01Spec YBI11
- October 2020
- AS tier
Open paper
Unit 2
Cells, Development, Biodiversity and Conservation
WBI12/01Spec YBI11
- October 2020
- AS tier
Open paper
Unit 3
Practical Skills in Biology I
WBI13/01Spec YBI11
- October 2020
- AS tier
Open paper

A2 tier· 3

Unit 4
Energy, Environment, Microbiology and Immunity
WBI14/01Spec YBI11
- October 2020
- A2 tier
Open paper
Unit 5
Respiration, Internal Environment, Coordination and Gene Technology
WBI15/01Spec YBI11
- October 2020
- A2 tier
Open paper
Unit 6
Practical Skills in Biology II
WBI16/01Spec YBI11
- October 2020
- A2 tier
Open paper

January 2020

4 papers

AS tier· 3

Unit 1
Molecules, Diet, Transport and Health
WBI11/01Spec YBI11
- January 2020
- AS tier
Open paper
Unit 2
Cells, Development, Biodiversity and Conservation
WBI12/01Spec YBI11
- January 2020
- AS tier
Open paper
Unit 3
Practical Skills in Biology I
WBI13/01Spec YBI11
- January 2020
- AS tier
Open paper

A2 tier· 1

Unit 4
Energy, Environment, Microbiology and Immunity
WBI14/01Spec YBI11
- January 2020
- A2 tier
- Question paper
- Mark scheme not available
- Examiner report
Open paper

October 2019

3 papers

Unit 1
Molecules, Diet, Transport and Health
WBI11/01Spec YBI11
- October 2019
- AS tier
Open paper
Unit 2
Cells, Development, Biodiversity and Conservation
WBI12/01Spec YBI11
- October 2019
- AS tier
Open paper
Unit 3
Practical Skills in Biology I
WBI13/01Spec YBI11
- October 2019
- AS tier
Open paper

June 2019

3 papers

Unit 1
Molecules, Diet, Transport and Health
WBI11/01Spec YBI11
- June 2019
- AS tier
Open paper
Unit 2
Cells, Development, Biodiversity and Conservation
WBI12/01Spec YBI11
- June 2019
- AS tier
Open paper
Unit 3
Practical Skills in Biology I
WBI13/01Spec YBI11
- June 2019
- AS tier
Open paper

January 2019

1 paper

Unit 1
Molecules, Diet, Transport and Health
WBI11/01Spec YBI11
- January 2019
- AS tier
Open paper

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Unit 1

Unit 1

Unit 2

Unit 2

Unit 3

Unit 3

Unit 4

Unit 4

Unit 5

Unit 5

Unit 6

Unit 6

Unit 1

Unit 1

Unit 2

Unit 2

Unit 3

Unit 3

Unit 4

Unit 4

Unit 5

Unit 5

Unit 6

Unit 6

Unit 1

Unit 2

Unit 3

Unit 4

Unit 5

Unit 6

Unit 1

Unit 2

Unit 3

Unit 4

Unit 5

Unit 6

Unit 1

Unit 2

Unit 3

Unit 4

Unit 5

Unit 6

Unit 1

Unit 2

Unit 3

Unit 4

Unit 5

Unit 6

Unit 1

Unit 2

Unit 3

Unit 4

Unit 5

Unit 6

Unit 1

Unit 2

Unit 3

Unit 4

Unit 5

Unit 6

Unit 1

Unit 2

Unit 3

Unit 4

Unit 5

Unit 6

Unit 1

Unit 2

Unit 3

Unit 4

Unit 5

Unit 6

Unit 1

Unit 2

Unit 3

Unit 4