Biology

Grade Boundaries — YBI11

Exam code:YBI11

U↑ 240 UMS to E

0 / 600 UMS

Each grade's cash-in boundary averaged across 15 sessions — the same unit marks, each session's own raw→UMS conversion.

Grade boundaries

Cash-in — the overall qualification (UMS)

June 2026

YBI11International A Level Biology

UMS · 600

480

420

360

300

240

January 2026

YBI11International A Level Biology

UMS · 600

480

420

360

300

240

October 2025

YBI11International A Level Biology

UMS · 600

480

420

360

300

240

June 2025

YBI11International A Level Biology

UMS · 600

480

420

360

300

240

Showing the latest 4 sessions — 15 in the corpus.

Unit boundaries (raw / UMS)

June 2026

Unit	Scale	A	B	C	D	E
WBI11 Unit 1: Molecules, Diet, Transport and Health	Raw · 80	58	51	45	39	33
	UMS · 120	96	84	72	60	48
WBI11 Unit 1A: Molecules, Diet, Transport and Health	Raw · 80	58	51	45	39	33
	UMS · 120	96	84	72	60	48
WBI12 Unit 2: Cells, Development, Biodiversity and Conservation	Raw · 80	58	51	44	37	31
	UMS · 120	96	84	72	60	48
WBI12 Unit 2A: Cells, Development, Biodiversity and Conservation	Raw · 80	57	50	43	37	31
	UMS · 120	96	84	72	60	48
WBI13 Unit 3: Practical Skills in Biology I	Raw · 50	36	31	26	21	17
	UMS · 60	48	42	36	30	24
WBI13 Unit 3A: Practical Skills in Biology I	Raw · 50	38	33	28	24	20
	UMS · 60	48	42	36	30	24
WBI14 Unit 4: Energy, Environment, Microbiology and Immunity	Raw · 90	56	50	44	38	32
	UMS · 120	96	84	72	60	48
WBI14 Unit 4A: Energy, Environment, Microbiology and Immunity	Raw · 90	57	51	45	39	33
	UMS · 120	96	84	72	60	48
WBI15	Raw · 90	64	56	48	40	33
	UMS · 120	96	84	72	60	48
WBI15	Raw · 90	64	56	48	41	34
	UMS · 120	96	84	72	60	48
WBI16 Unit 6: Practical Skills in Biology II	Raw · 50	41	36	31	26	22
	UMS · 60	48	42	36	30	24
WBI16 Unit 6A: Practical Skills in Biology II	Raw · 50	40	35	30	25	21
	UMS · 60	48	42	36	30	24

January 2026

Unit	Scale	A	B	C	D	E
WBI11 Unit 1: Molecules, Diet, Transport and Health	Raw · 80	54	48	42	36	30
	UMS · 120	96	84	72	60	48
WBI11 Unit 1A: Molecules, Diet, Transport and Health	Raw · 80	54	48	42	36	30
	UMS · 120	96	84	72	60	48
WBI12 Unit 2: Cells, Development, Biodiversity and Conservation	Raw · 80	57	50	43	37	31
	UMS · 120	96	84	72	60	48
WBI12 Unit 2A: Cells, Development, Biodiversity and Conservation	Raw · 80	57	50	43	37	31
	UMS · 120	96	84	72	60	48
WBI13 Unit 3: Practical Skills in Biology I	Raw · 50	38	33	28	23	19
	UMS · 60	48	42	36	30	24
WBI13 Unit 3A: Practical Skills in Biology I	Raw · 50	38	33	28	23	19
	UMS · 60	48	42	36	30	24
WBI14 Unit 4: Energy, Environment, Microbiology and Immunity	Raw · 90	55	49	44	39	34
	UMS · 120	96	84	72	60	48
WBI14 Unit 4A: Energy, Environment, Microbiology and Immunity	Raw · 90	55	49	44	39	34
	UMS · 120	96	84	72	60	48
WBI15 Unit 5: Respiration, Internal Environment, Coordination and Gene Technology	Raw · 90	60	53	47	41	35
	UMS · 120	96	84	72	60	48
WBI15 Unit 5A: Respiration, Internal Environment, Coordination and Gene Technolog	Raw · 90	60	53	47	41	35
	UMS · 120	96	84	72	60	48
WBI16 Unit 6: Practical Skills in Biology II	Raw · 50	38	33	29	25	21
	UMS · 60	48	42	36	30	24
WBI16 Unit 6A: Practical Skills in Biology II	Raw · 50	38	33	29	25	21
	UMS · 60	48	42	36	30	24

October 2025

Unit	Scale	A	B	C	D	E
WBI11 Unit 1: Molecules, Diet, Transport and Health	Raw · 80	53	47	41	35	29
	UMS · 120	96	84	72	60	48
WBI11 Unit 1A: Molecules, Diet, Transport and Health	Raw · 80	53	47	41	35	29
	UMS · 120	96	84	72	60	48
WBI12 Unit 2: Cells, Development, Biodiversity and Conservation	Raw · 80	55	48	41	35	29
	UMS · 120	96	84	72	60	48
WBI12 Unit 2A: Cells, Development, Biodiversity and Conservation	Raw · 80	55	48	41	35	29
	UMS · 120	96	84	72	60	48
WBI13 Unit 3: Practical Skills in Biology I	Raw · 50	40	35	30	25	21
	UMS · 60	48	42	36	30	24
WBI13 Unit 3A: Practical Skills in Biology I	Raw · 50	40	35	30	25	21
	UMS · 60	48	42	36	30	24
WBI14 Unit 4: Energy, Environment, Microbiology and Immunity	Raw · 90	54	48	43	38	33
	UMS · 120	96	84	72	60	48
WBI14 Unit 4A: Energy, Environment, Microbiology and Immunity	Raw · 90	54	48	43	38	33
	UMS · 120	96	84	72	60	48
WBI15 Unit 5: Respiration, Internal Environment, Coordination and Gene Technology	Raw · 90	60	53	47	41	35
	UMS · 120	96	84	72	60	48
WBI15 Unit 5A: Respiration, Internal Environment, Coordination and Gene Technology	Raw · 90	60	53	47	41	35
	UMS · 120	96	84	72	60	48
WBI16 Unit 6: Practical Skills in Biology II	Raw · 50	40	35	31	27	23
	UMS · 60	48	42	36	30	24
WBI16 Unit 6A: Practical Skills in Biology II	Raw · 50	40	35	31	27	23
	UMS · 60	48	42	36	30	24

June 2025

Unit	Scale	A	B	C	D	E
WBI11 Unit 1: Molecules, Diet, Transport and Health	Raw · 80	54	48	42	36	30
	UMS · 120	96	84	72	60	48
WBI12 Unit 2: Cells, Development, Biodiversity and Conservation	Raw · 80	57	50	43	37	31
	UMS · 120	96	84	72	60	48
WBI13 Unit 3: Practical Skills in Biology I	Raw · 50	38	33	28	23	19
	UMS · 60	48	42	36	30	24
WBI14 Unit 4: Energy, Environment, Microbiology and Immunity	Raw · 90	55	49	44	39	34
	UMS · 120	96	84	72	60	48
WBI15 Unit 5: Respiration, Internal Environment, Coordination and Gene	Raw · 90	60	53	47	41	35
	UMS · 120	96	84	72	60	48
WBI16 Unit 6: Practical Skills in Biology II	Raw · 50	38	33	29	25	21
	UMS · 60	48	42	36	30	24

Showing the latest 4 sessions — 15 in the corpus.

Source: official Edexcel grade-boundary documents — every file sha256-recorded in the syllabai-resources GradeBoundaries lane. A boundary is the minimum mark for the grade.

Unit

Scale

WBI11 Unit 1: Molecules, Diet, Transport and Health

Raw · 80

UMS · 120

WBI11 Unit 1A: Molecules, Diet, Transport and Health

Raw · 80

UMS · 120

WBI12 Unit 2: Cells, Development, Biodiversity and Conservation

Raw · 80

UMS · 120

WBI12 Unit 2A: Cells, Development, Biodiversity and Conservation

Raw · 80

UMS · 120

WBI13 Unit 3: Practical Skills in Biology I

Raw · 50

UMS · 60

WBI13 Unit 3A: Practical Skills in Biology I

Raw · 50

UMS · 60

WBI14 Unit 4: Energy, Environment, Microbiology and Immunity

Raw · 90

UMS · 120

WBI14 Unit 4A: Energy, Environment, Microbiology and Immunity

Raw · 90

UMS · 120

WBI15

Raw · 90

UMS · 120

WBI15

Raw · 90

UMS · 120

WBI16 Unit 6: Practical Skills in Biology II

Raw · 50

UMS · 60

WBI16 Unit 6A: Practical Skills in Biology II

Raw · 50

UMS · 60

Unit

Scale

WBI11 Unit 1: Molecules, Diet, Transport and Health

Raw · 80

UMS · 120

WBI11 Unit 1A: Molecules, Diet, Transport and Health

Raw · 80

UMS · 120

WBI12 Unit 2: Cells, Development, Biodiversity and Conservation

Raw · 80

UMS · 120

WBI12 Unit 2A: Cells, Development, Biodiversity and Conservation

Raw · 80

UMS · 120

WBI13 Unit 3: Practical Skills in Biology I

Raw · 50

UMS · 60

WBI13 Unit 3A: Practical Skills in Biology I

Raw · 50

UMS · 60

WBI14 Unit 4: Energy, Environment, Microbiology and Immunity

Raw · 90

UMS · 120

WBI14 Unit 4A: Energy, Environment, Microbiology and Immunity

Raw · 90

UMS · 120

WBI15 Unit 5: Respiration, Internal Environment, Coordination and Gene Technology

Raw · 90

UMS · 120

WBI15 Unit 5A: Respiration, Internal Environment, Coordination and Gene Technolog

Raw · 90

UMS · 120

WBI16 Unit 6: Practical Skills in Biology II

Raw · 50

UMS · 60

WBI16 Unit 6A: Practical Skills in Biology II

Raw · 50

UMS · 60

Unit

Scale

WBI11 Unit 1: Molecules, Diet, Transport and Health

Raw · 80

UMS · 120

WBI11 Unit 1A: Molecules, Diet, Transport and Health

Raw · 80

UMS · 120

WBI12 Unit 2: Cells, Development, Biodiversity and Conservation

Raw · 80

UMS · 120

WBI12 Unit 2A: Cells, Development, Biodiversity and Conservation

Raw · 80

UMS · 120

WBI13 Unit 3: Practical Skills in Biology I

Raw · 50

UMS · 60

WBI13 Unit 3A: Practical Skills in Biology I

Raw · 50

UMS · 60

WBI14 Unit 4: Energy, Environment, Microbiology and Immunity

Raw · 90

UMS · 120

WBI14 Unit 4A: Energy, Environment, Microbiology and Immunity

Raw · 90

UMS · 120

WBI15 Unit 5: Respiration, Internal Environment, Coordination and Gene Technology

Raw · 90

UMS · 120

WBI15 Unit 5A: Respiration, Internal Environment, Coordination and Gene Technology

Raw · 90

UMS · 120

WBI16 Unit 6: Practical Skills in Biology II

Raw · 50

UMS · 60

WBI16 Unit 6A: Practical Skills in Biology II

Raw · 50

UMS · 60

Unit

Scale

WBI11 Unit 1: Molecules, Diet, Transport and Health

Raw · 80

UMS · 120

WBI12 Unit 2: Cells, Development, Biodiversity and Conservation

Raw · 80

UMS · 120

WBI13 Unit 3: Practical Skills in Biology I

Raw · 50

UMS · 60

WBI14 Unit 4: Energy, Environment, Microbiology and Immunity

Raw · 90

UMS · 120

WBI15 Unit 5: Respiration, Internal Environment, Coordination and Gene

Raw · 90

UMS · 120

WBI16 Unit 6: Practical Skills in Biology II

Raw · 50

UMS · 60