Free A-Level Biology Resources
Video tutorials, revision notes, activities and exam tools created by Tyrone — a Chartered Biologist and former WJEC/Eduqas & Edexcel examiner with over 25 years of A-Level Biology teaching experience. Browse by topic below, use the grade calculators and tools, or visit my YouTube channel with 100+ free videos.
Last updated: February 2026
About These Resources
These free A-Level Biology resources are designed to support your revision alongside classroom teaching or private tutoring. Every resource on this page has been created by me, Tyrone — I have over 25 years of experience teaching A-Level Biology and have examined for both WJEC/Eduqas and Edexcel.
What makes these resources different from other revision sites is the emphasis on exam technique. Most of my video tutorials focus on how to answer past paper questions — breaking down what examiners are looking for, the precise language you need to use, and the common mistakes that cost students marks. This is insight that comes directly from my experience marking thousands of exam papers.
The topic resources are relevant to all UK A-Level Biology exam boards, including AQA, Edexcel A & B, OCR A & B, WJEC, Eduqas, IB Biology and Cambridge International (CIE). While the core biology content is shared across specifications, always check your own exam board’s specification for the exact topics and depth of knowledge required.
Topic Revision Resources
Each topic page includes video tutorials covering past paper questions, downloadable activities and detailed revision notes. Select a topic below to get started. New topics are being added regularly — the resources currently focus on AS/Year 1 content, with A2/Year 2 topics being added throughout 2026.
No topics match your search. Try a different word, or ask me directly.
Cell Structure
Prokaryotic and eukaryotic cells, organelle structure and function, microscopy and cell imaging techniques.
→Cell Membrane
Fluid mosaic model, membrane transport, osmosis, diffusion, active transport and membrane permeability.
→Cell Division
Mitosis, meiosis, the cell cycle, chromosome behaviour and the significance of cell division.
→Mitosis & the Cell Cycle
The cell cycle and every stage of mitosis — interphase, prophase, metaphase, anaphase, telophase and cytokinesis — with labelled diagrams, the mitotic index and interactive practice.
Enzymes
Enzyme structure, function, kinetics, inhibition, factors affecting enzyme activity and practical investigations.
→DNA Replication & Protein Synthesis
DNA structure, semi-conservative replication, transcription, translation and the genetic code.
→Biological Molecules
Carbohydrates, lipids, proteins, nucleic acids — structure, function and biochemical tests.
Animal Transport
Heart structure and function, circulatory system, blood vessels, gas exchange and haemoglobin.
→Plant Transport
Xylem, phloem, transpiration, translocation, water uptake and the cohesion-tension theory.
→Gas Exchange & Transport
Gas exchange surfaces, ventilation, spirometry, oxygen dissociation curves, the Bohr effect and CO₂ transport.
→Photosynthesis
Light-dependent reaction, the Calvin cycle, chloroplast structure, photophosphorylation and limiting factors.
→Cellular Respiration
Glycolysis, the link reaction, the Krebs cycle, oxidative phosphorylation, chemiosmosis and anaerobic respiration.
→The Nervous System
Resting and action potentials, synaptic transmission, neurone structure, reflexes and conduction speed.
→Homeostasis
Negative feedback, blood glucose control, osmoregulation and the kidney, and thermoregulation.
Ecology & Ecosystems
Ecosystems, energy flow, nutrient cycles, populations, biodiversity and conservation.
→Genetics & Inheritance
Mendelian genetics, inheritance patterns, chi-squared test, gene mutations and genetic crosses.
→Immunity & Disease
Immune response, antigens and antibodies, vaccination, pathogens and the inflammatory response.
→Evolution & Natural Selection
Natural selection, types of selection, the Hardy-Weinberg principle, genetic drift and speciation.
Maths Skills & Worked Solutions
Step-by-step worked solutions to the maths questions in every major A-Level Biology specification – the Student’s t-test, chi-squared, Hardy-Weinberg, magnification and more – each with a searchable past-paper question bank.
AQA Biology Maths
Worked solutions to every maths skill in AQA A-Level Biology, plus a searchable past-paper question bank.
→WJEC Biology Maths
Worked solutions to the maths skills in WJEC A-Level Biology (Units 1-5), plus a searchable question bank.
→Eduqas Biology Maths
Worked solutions to the maths skills in Eduqas A-Level Biology (Components 1-3), plus a searchable question bank.
→Edexcel A Biology Maths
Worked solutions to the maths skills in Edexcel A-Level Biology A (SNAB, Papers 1-3), plus a searchable question bank.
→Edexcel B Biology Maths
Worked solutions to the maths skills in Edexcel B A-Level Biology (Pearson Biology B, 9BI0, Papers 1-3), plus a searchable question bank.
→Edexcel International Biology Maths
Worked solutions to the maths skills in Edexcel International A-Level Biology (Pearson IAL, Units 1-6, all three series), plus a searchable question bank.
→OCR A Biology Maths
Worked solutions to the maths skills in OCR A A-Level Biology (H020 / H420, Papers 1-3), plus a searchable question bank.
→OCR B Biology Maths
Worked solutions to the maths skills in OCR B (Advancing Biology) A-Level Biology (H022 / H422, Papers 1-3), plus a searchable question bank.
Statistics for A-level Biology
Every statistical test A-Level Biology students need, built from scratch with zero assumed knowledge – a which-test-do-I-use flowchart, worked examples and self-marking practice. Covers AQA, OCR, Edexcel and WJEC.
Statistics Hub
Which test do I use? A flowchart, a comparison table and the conditions for every A-Level Biology statistical test.
→Descriptive Statistics
Mean, median, mode, range, standard deviation, standard error and error bars, taught from scratch.
→The t-test
Compare two means: paired and unpaired, degrees of freedom, with worked examples.
→Spearman’s Rank Correlation
Test whether two variables change together, and why correlation is not causation.
→The Chi-squared Test
Compare observed and expected counts: goodness-of-fit for genetic ratios and contingency tables.
Practical & Exam Answers
Worked model answers to the practical-examination and extended-response papers – written by a Chartered Biologist and former examiner, the way the mark scheme expects them.
WJEC & Eduqas QER Model Answers
Downloadable booklets of worked Band 3 (7–9 mark) model answers to every QER extended-response question — by WJEC unit and Eduqas component, with mark-scheme breakdowns and annotated answers.
→WJEC Unit 5 Experimental Task
Full worked answers to every WJEC A2 Biology Unit 5 Experimental Task (2017-2024) – model results, WJEC-style graphs and examiner tips.
Guides
In-depth A-Level Biology reference guides on specifications, practicals, terminology and exam skills – written by a former examiner.
A-Level Biology Specification Guide
How every exam board’s spec is structured – AQA, OCR, Edexcel, WJEC, Eduqas – and how to use yours.
→Practical Terms Glossary
Accuracy, precision, reliability, errors, uncertainty and significant figures – defined.
→Understanding Biological Terms
Decode any biology word by splitting it into prefix, root and suffix – with an interactive word decoder, searchable tables and puzzles.
→Required Practicals Guide
Every board’s required practicals, how they’re assessed, and the skills examiners test.
→A-Level Biology Exam Tips
Exam-day technique from a former examiner – time, command words, calculations, data.
→How Long to Revise
How many hours to revise – during term, before exams, and for each target grade.
Blog Posts
Advice and opinion articles on tutoring, revision and exam technique from a former examiner.
Visit the full A-Level Biology blog →
How to Get an A* in A-Level Biology
Exactly what separates A* answers from the rest, from a former examiner.
→How to Answer 6-Mark Questions
Structure, command words and what earns full marks in extended answers.
→A-Level Biology Command Words
Describe, explain, evaluate – what each command word actually requires.
→Common A-Level Biology Mistakes
The errors that cost marks, spotted by a former examiner, and how to avoid them.
→A-Level Biology Revision Techniques
The revision methods that actually move grades, not just feel productive.
→How to Use Past Papers
Mark your own work, read mark schemes, and target your weak topics.
→A-Level Biology vs GCSE
How big the jump really is, and how to prepare for the step up.
→Is A-Level Biology Hard?
An honest answer, the toughest topics, and how to make it manageable.
→How Much Does a Biology Tutor Cost?
What A-Level Biology tuition costs and how to get value from it.
→AQA 25-Mark Essay Guide
How to plan and write the AQA Paper 3 essay for top marks.
→Is a Biology Tutor Worth It?
An honest examiner’s take on when tutoring delivers real value – and when it does not.
→When Should You Get a Tutor?
The warning signs to watch for and the best time in the school year to start.
Tools & Exam Guides
I have also created free tools to help you understand your exam performance and develop your exam technique. The grade calculators let you see exactly what marks you need across each unit to achieve your target grade, and the QER guide teaches you how to approach Quality of Extended Response questions — one of the most challenging question types in A-Level Biology.
A-Level Biology Calculators
70+ free calculators with full step-by-step working – magnification, water potential, statistics, genetics, rates, dilutions and more.
All boardsWJEC Biology Glossary
A searchable bilingual English-Welsh glossary of every WJEC AS and A-level Biology term, each paired to the official Welsh wording.
WJEC (Bilingual)WJEC & Eduqas Biology Dictionary
A searchable dictionary of WJEC and Eduqas A-level Biology terms with clear, exam-pitched definitions covering Units 1-5.
WJEC & EduqasWJEC/Eduqas QER Guide
Learn how to structure and write Quality of Extended Response (QER) answers that earn full marks — with model answers and examiner insight.
WJEC & EduqasWJEC Grade Calculator
Calculate your predicted A-Level Biology grade based on your unit marks. See exactly what you need to hit your target grade.
WJEC (Wales)Eduqas Grade Calculator
Calculate your predicted A-Level Biology grade for the Eduqas specification. Plan your revision around the marks that matter most.
Eduqas (England)WJEC Unit 1 Revision Checklist
A complete revision checklist for WJEC A-Level Biology Unit 1, with links to past papers and mark schemes.
WJEC (Wales)Free Video Tutorials on YouTube
My YouTube channel, The A-Level Biology Channel, has over 100 free video tutorials covering key A-Level Biology topics. Most videos focus on answering past paper questions, showing you step by step how to structure your answers and earn every available mark.
Videos cover past paper walkthroughs, topic explanations and exam technique coaching. New videos are added regularly.
▶ Visit The A-Level Biology ChannelHow to Get the Most From These Resources
These resources are most effective when used as part of a structured revision plan rather than as a last-minute cramming tool. Here is how I recommend using them based on my experience helping hundreds of A-Level Biology students improve their grades.
Start With Your Specification
Before diving into any topic, check your exam board’s specification to understand exactly what you need to know and to what depth. The content on these pages covers core biology that applies across all boards, but the emphasis and required depth can vary. Your specification is your revision roadmap — use it alongside these resources to stay focused on what will actually appear in your exams.
Watch the Videos Actively
Do not just watch passively. Pause the video after I read out each question and attempt the answer yourself before watching my explanation. Compare your answer to the model answer and note where you dropped marks. This active approach is far more effective than simply watching and hoping the information sinks in.
Use the Activities to Test Yourself
The downloadable activities and worksheets are designed to reinforce what you have learned. They use retrieval practice — one of the most evidence-based study techniques — which means they test your ability to recall information rather than simply recognise it.
Combine With Past Papers
Once you have worked through the topic resources, move on to past papers for your specific exam board. The video tutorials will have shown you how marks are awarded, so apply that knowledge to full past papers under timed conditions. This is where real exam confidence is built.
Need More Than Free Resources?
If you are looking for personalised support tailored to your exam board and specific areas of difficulty, I offer one-to-one and small group online tutoring. My students consistently achieve grades above their predictions — including B/C to A* in just 8 months and E/D to B over two years of tuition.
Chartered Biologist (CBiol) · Former WJEC/Eduqas & Edexcel Examiner · 25+ Years Experience · All 5-Star Reviews
Book a Free 20-Minute ConsultationWhat Students & Parents Say
Verified reviews from students and parents who have worked with Tyrone for A-Level Biology tutoring.
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Google Frequently Asked Questions About These Resources
Are these A-Level Biology resources really free?
Yes — completely free with no sign-up required. All the video tutorials, downloadable activities and revision tools on this site are available at no cost. I created them because I believe every student should have access to high-quality revision support, regardless of whether they can afford private tutoring.
Which exam boards do these resources cover?
The topic revision resources (cell structure, enzymes, transport, etc.) cover core A-Level Biology content that applies across all UK exam boards — AQA, Edexcel A and B, OCR A and B, WJEC, Eduqas, IB Biology and Cambridge International. The core concepts are the same; where boards differ is in specific terminology, question styles and depth of coverage. Some tools, like the grade calculators and QER guide, are specific to WJEC and Eduqas.
How are these resources different from other revision sites?
Most free revision sites focus on summarising content — what you need to know. My resources focus on exam technique — how to answer questions to earn maximum marks. Having examined for WJEC/Eduqas and Edexcel, I know exactly what examiners look for in high-scoring answers and the specific mistakes that cost students marks. This examiner perspective is built into every video tutorial and revision page.
Can I use these resources alongside tutoring?
Absolutely — and many of my tutoring students do exactly that. The free resources are ideal for reinforcing topics between sessions. Students who have tutoring with me also get access to the Student Portal, which contains additional exam-board-specific resources, session recordings, personalised notes and targeted past paper questions.
Will more topics be added?
Yes — new topic resources are being added regularly. I am working through the full A-Level Biology syllabus, with upcoming topics including genetics and inheritance, ecology, immunity and disease, homeostasis, and more. Follow The A-Level Biology Channel on YouTube to be notified when new resources are published, or simply check this page regularly.
Do I need to create an account to access the resources?
No — everything on this page is freely available without registration. Simply click on a topic and start learning. The only part of the site that requires a login is the Student Portal, which is exclusively for students who have booked tutoring sessions with me.