睿卷 SagaciaPast Papers

Edexcel IAL YBI11 Biology Unit 4 Energy, Environment, Microbiology and Immunity (WBI14) Past Papers

Pearson Edexcel International A Level (IAL) YBI11 Biology Unit 4 Energy, Environment, Microbiology and Immunity (WBI14): written paper. 15 past papers from 2020 to 2025; 4 can be taken online.

Take a past paper online — free once

Open any series below, then choose “Take this paper online”.

All series

SeriesCodeMaxQsThresholds (min marks)Online
May/June 2025WBI14–––soon
January 2025WBI14–––soon
October 2024WBI14–––soon
May/June 2024WBI14–––soon
January 2024WBI14–––soon
October 2023WBI14–––soon
May/June 2023WBI14–––soon
January 2023WBI14–9–online
October 2022WBI14–––soon
May/June 2022WBI14–––soon
January 2022WBI14–7–online
October 2021WBI14–8–online
May/June 2021WBI14–7–online
January 2021WBI14–––soon
October 2020WBI14–––soon

Topic coverage (all verified papers)

4.1 Energy Flow, Ecosystems and the Environment111 marks · 58%
4.2 Microbiology, Immunity and Forensics79 marks · 42%
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