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Edexcel International A‑level Biology YBI11
Online Tuition
Six modular units, three exam series a year, and two written practical papers most families don't plan around. We tutor unit by unit - molecules, cells, physiology, ecology and the practical-skills papers - to the exact combination your child is taking.
How we teach Edexcel International A‑level Biology at Tuition Highway
A simple four-step approach designed to build confidence, close gaps and improve exam performance.
Find the gaps
A diagnostic against the syllabus topics tells us what's secure and what isn't, so we teach the gaps rather than the whole book.
Teach weekly, one to one
The same tutor teaches each week around school. Concepts build step by step, with the school's pace kept in view.
Practise like the exam
Past-paper questions begin early, followed by full timed papers marked against the published mark scheme.
Matched with a tutor who knows this syllabus
Expert, vetted Edexcel International A-level Biology tutors who have taught the YBI11 specification. Past-paper work is reviewed against published mark schemes, so your child can see where marks are awarded and where they are being lost. UK-qualified teachers are available on request as a premium option.
Taught YBI11
Not "edexcel international A-level biology in general" - this syllabus, this tier and these papers.
Reviews work against the mark scheme
Your child learns where the marks actually are, not where they feel they should be.
Built for online teaching
Shared whiteboard, worked solutions and lesson materials saved to review after the session.
Consistent across the term
The same tutor every week - and if that changes, we tell you first.
Edexcel International Biology: six units, banked and resat across three series a year
The qualification is fully modular. Four theory units and two practical-skills units make up the full International A-level, each a standalone written exam that can be banked and resat toward the final grade. Practical skills are assessed on paper, not at the bench.
PAPER
WHAT IT TESTS
DETAILS
HOW WE PREPARE STUDENTS
IAS - UNITS 1-31
Molecules, Diet, Transport and HealthWBI11
Molecules, transport and physiology
1h 30m
80 marks / 20%
Build fluent methods without calculator shortcuts- Review mark-scheme working with timed past-paper questions
2
Cells, Development, Biodiversity and ConservationWBI12
Cells, genetics, biodiversity and conservation
1h 30m80 marks / 20%- Build fluent methods without calculator shortcuts
- Review mark-scheme working with timed past-paper questions
3
Practical Skills in Biology IWBI13
Written practical biology, design and statistics
1h 20m50 marks / 10%- Build fluent methods without calculator shortcuts
- Review mark-scheme working with timed past-paper questions
IA2 - UNITS 4-64
Energy, Environment, Microbiology and ImmunityWBI14
Energy transfer, ecology, microbiology and immunity
1h 45m90 marks / 20%- Build fluent methods without calculator shortcuts
- Review mark-scheme working with timed past-paper questions
5
Respiration, Internal Environment, Coordination and Gene TechnologyWBI15
Respiration, homeostasis, coordination and gene technology
1h 45m90 marks / 20%- Build fluent methods without calculator shortcuts
- Review mark-scheme working with timed past-paper questions
6
Practical Skills in Biology IIWBI16
Written practical biology, data, statistics and evaluation
1h 20m50 marks / 10%- Build fluent methods without calculator shortcuts
- Review mark-scheme working with timed past-paper questions
International AS (Units 1-3) is worth 50% of the International A-level.
Figures shown for 0580 and 0980 syllabuses for 2025-2027.
IASUNITS 1-3Molecules, Diet, Transport and Health
WBI11
- WHAT IT TESTS
- Molecules, transport and physiology
- DETAILS
- 1h 30m80 marks / 20%
- HOW WE PREPARE STUDENTS
- Build fluent methods without calculator shortcuts
- Review mark-scheme working with timed past-paper questions
Cells, Development, Biodiversity and Conservation
WBI12
- WHAT IT TESTS
- Cells, genetics, biodiversity and conservation
- DETAILS
- 1h 30m80 marks / 20%
- HOW WE PREPARE STUDENTS
- Build fluent methods without calculator shortcuts
- Review mark-scheme working with timed past-paper questions
Practical Skills in Biology I
WBI13
- WHAT IT TESTS
- Written practical biology, design and statistics
- DETAILS
- 1h 20m50 marks / 10%
- HOW WE PREPARE STUDENTS
- Build fluent methods without calculator shortcuts
- Review mark-scheme working with timed past-paper questions
IA2UNITS 4-6Energy, Environment, Microbiology and Immunity
WBI14
- WHAT IT TESTS
- Energy transfer, ecology, microbiology and immunity
- DETAILS
- 1h 45m90 marks / 20%
- HOW WE PREPARE STUDENTS
- Build fluent methods without calculator shortcuts
- Review mark-scheme working with timed past-paper questions
Respiration, Internal Environment, Coordination and Gene Technology
WBI15
- WHAT IT TESTS
- Respiration, homeostasis, coordination and gene technology
- DETAILS
- 1h 45m90 marks / 20%
- HOW WE PREPARE STUDENTS
- Build fluent methods without calculator shortcuts
- Review mark-scheme working with timed past-paper questions
Practical Skills in Biology II
WBI16
- WHAT IT TESTS
- Written practical biology, data, statistics and evaluation
- DETAILS
- 1h 20m50 marks / 10%
- HOW WE PREPARE STUDENTS
- Build fluent methods without calculator shortcuts
- Review mark-scheme working with timed past-paper questions
International AS (Units 1-3) is worth 50% of the International A-level.
Units can be sat in January, June and October, and any unit can be resat. Practical skills are 100% written assessment in Units 3 and 6.
Everything you need to know, at a glance.
e break down the Cambridge IGCSE syllabus so you know eactly whats covered how its assessed and the best route for your child.
- 0101
Clear syllabus information
Know the code, grading, papers and topics.
- 0202
Choose the right path
Replace step two description.
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Plan with confidence
Stay ahead with exam series and key details.
2025 - 2027- Structure
- 6 modular units
- Theory units
- Units 1, 2, 4 & 5
- Practical units
- Units 3 & 6 (written)
- Each series
- January / June / October
- Grading
- A*-E (IAS: a-e)
- Units
- Bankable & resittable
100% written assessment. The written practical papers still matter because together they carry a fifth of the final qualification.
What the Biology syllabus covers
These are the main syllabus strands your child is expected to cover. We teach all of them, starting with the gaps that are costing marks first.
Tuition stays aligned to the exact paper or unit structure, so revision time goes where the marks actually move.
Biological molecules
Diet & cardiovascular health
Transport & the heart
Cell structure & the cell cycle
DNA, genes & protein synthesis
Development & gene expression
Biodiversity & conservation
Photosynthesis & ecosystems
Climate & evolution
Microbiology
Immunity & disease
Respiration & muscles
Homeostasis & coordination
Gene technology
FREE 30-MINUTE DEMO
Start with a free demo
Share your child's details and syllabus code. We'll match the right tutor and arrange a free 30-minute demo session.
Questions parents ask about Edexcel International A‑level Biology
Which units does my child take for Edexcel International A-level Biology?+-
Six units: Units 1, 2, 4 and 5 are theory papers, and Units 3 and 6 assess practical skills by written exam.
Is Edexcel International Biology modular?+-
Yes. Each unit is a standalone exam that can be banked across sessions and resat to improve the grade.
How is the practical assessed?+-
By written exam, in Units 3 and 6. There is no separate lab exam.
How is it graded?+-
The full International A-level is graded A* to E; International AS is graded a to e.
When are the exams?+-
Units are available in January, June and October.
Why do strong students still lose marks?+-
Biology is marked on precise terminology and on interpreting unfamiliar data. Both are skills, not just knowledge.
What if the tutor isn't the right fit?+-
We replace them - free, and with no argument - and hand over the unit-by-unit progress and known concerns so the new tutor continues seamlessly.
Can you help us choose between Edexcel and Cambridge Biology?+-
Yes. The biology overlaps heavily; the difference is structure - Edexcel's bankable modular units with written practical papers, versus Cambridge's papers-together model with a live lab exam.