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Pearson Edexcel International A Level

Biology YBI11 past papers 2025

12 question papers from May/June and January 2025, every variant with its mark scheme and official grade boundaries. Open any paper in Study Drive, free and with no sign-up.

May/June 2025 6 papers

Paper	Codes	Grade boundaries	Open in Study Drive
Unit 1ASMolecules, Diet, Transport and Health	WBI11/01 wbi11-01-que-20250507	out of 80 · A 54 · B 48 · C 42 · D 36 · E 30	Paper Paper + mark scheme
Unit 2ASCells, Development, Biodiversity and Conservation	WBI12/01 wbi12-01-que-20250517	out of 80 · A 57 · B 50 · C 43 · D 37 · E 31	Paper Paper + mark scheme
Unit 3ASPractical Skills in Biology I	WBI13/01 wbi13-01-que-20250522	out of 50 · A 38 · B 33 · C 28 · D 23 · E 19	Paper Paper + mark scheme
Unit 4A2Energy, Environment, Microbiology and Immunity	WBI14/01 wbi14-01-que-20250528	out of 90 · A* 61 · A 55 · B 49 · C 44 · D 39 · E 34	Paper Paper + mark scheme
Unit 5A2Respiration, Internal Environment, Coordination and Gene Technology	WBI15/01 wbi15-01-que-20250607	out of 90 · A* 67 · A 60 · B 53 · C 47 · D 41 · E 35	Paper Paper + mark scheme
Unit 6A2Practical Skills in Biology II	WBI16/01 wbi16-01-que-20250612	out of 50 · A* 43 · A 38 · B 33 · C 29 · D 25 · E 21	Paper Paper + mark scheme

January 2025 6 papers

Paper	Codes	Grade boundaries	Open in Study Drive
Unit 1ASMolecules, Diet, Transport and Health	WBI11/01 wbi11-01-que-20250111	out of 80 · A 49 · B 43 · C 37 · D 31 · E 25	Paper Paper + mark scheme
Unit 2ASCells, Development, Biodiversity and Conservation	WBI12/01 wbi12-01-que-20250116	out of 80 · A 54 · B 47 · C 40 · D 33 · E 27	Paper Paper + mark scheme
Unit 3ASPractical Skills in Biology I	WBI13/01 wbi13-01-que-20250121	out of 50 · A 33 · B 29 · C 25 · D 22 · E 19	Paper Paper + mark scheme
Unit 4A2Energy, Environment, Microbiology and Immunity	WBI14/01 wbi14-01-que-20250110	out of 90 · A* 59 · A 53 · B 47 · C 41 · D 35 · E 30	Paper Paper + mark scheme
Unit 5A2Respiration, Internal Environment, Coordination and Gene Technology	WBI15/01 wbi15-01-que-20250115	out of 90 · A* 64 · A 57 · B 50 · C 43 · D 36 · E 30	Paper Paper + mark scheme
Unit 6A2Practical Skills in Biology II	WBI16/01 wbi16-01-que-20250124	out of 50 · A* 42 · A 38 · B 34 · C 30 · D 26 · E 22	Paper Paper + mark scheme