WJEC GCSE Biology (3400), taken mainly by students in Wales, is assessed by two written unit exams and a Unit 3 practical assessment, at Foundation or Higher tier. Our WJEC GCSE Biology course covers cells and movement across membranes, respiration, digestion, the circulatory system, plants and photosynthesis, ecosystems, genetics, the nervous system, homeostasis and disease. You prepare for the unit exams and the practical assessment. Lessons are live and one-to-one with a verified subject tutor, who works through exam-style questions with you, marks your answers against the WJEC mark scheme and shows you where marks are won and lost. The course follows the WJEC specification for schools in Wales, and suits Eduqas students who need the same core content. Suitable for foundation and higher tier students in Year 10 and Year 11, and for resits.
Reviewed by N. Kanik, Master's in Biology / Life SciencesLast updated
$11 – $31
per hour
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What you will learn
Prerequisites
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Course structure
In short: this course gives one-to-one online tutoring for WJEC GCSE Biology (3400), the Wales specification. A verified tutor teaches both units, the practical assessment skills and exam technique for your tier, using WJEC past papers.
WJEC GCSE Biology is the separate-science GCSE in biology from WJEC, the main exam board in Wales. It is assessed by two written unit exams and a practical assessment, at Foundation and Higher tier, and graded A* to G.
This course covers the full WJEC Biology specification one to one with a verified tutor, focusing on the topics and question types that cost you marks.
Official specification: WJEC GCSE Biology (3400). Papers and content can change, so check the current specification on the board's website.
For wider support, see our biology tutoring page, or the WJEC GCSE Physics course for your other science.
WJEC GCSE Biology (3400) is the Wales specification taught from 2016 and awarded from 2018. It is not one of the new made-for-Wales GCSEs, and Qualifications Wales says it continues until at least summer 2031. It is graded A* to G: Higher tier covers A* to D and Foundation tier covers C to G. Check the current specification on the board's website.
| Unit | Time | Marks | Weighting | Format |
|---|---|---|---|---|
| Unit 1: Cells, Organ Systems and Ecosystems | 1 hour 45 minutes | 80 | 45% | Tiered: short answer, structured, extended writing and data response |
| Unit 2: Variation, Homeostasis and Micro-organisms | 1 hour 45 minutes | 80 | 45% | Tiered: short answer, structured, extended writing and data response |
| Unit 3: Practical Assessment | Two 60-minute sessions | 30 | 10% | Untiered, externally marked |
Unit 3, the Practical Assessment, is untiered and externally marked. Section A, obtaining results, is worth 6 marks and is done in groups over 60 minutes; Section B, analysing, is worth 24 marks and is done individually over 60 minutes. WJEC is updating the practical unit from September 2026, so check the latest arrangements with your school.
Tutors help you practise analysing data, drawing graphs, calculating means and evaluating methods, so Section B marks are secure.
| Unit 1: Cells, Organ Systems and Ecosystems | Unit 2: Variation, Homeostasis and Micro-organisms |
|---|---|
| Cells and movement across membranes | Classification and biodiversity |
| Respiration and the respiratory system | Cell division and stem cells |
| Digestion | DNA and inheritance |
| Circulatory system | Variation and evolution |
| Plants and photosynthesis | Response and regulation |
| Ecosystems, nutrient cycles and human impact | Kidneys and homeostasis |
| Micro-organisms and their applications | |
| Disease, defence and treatment |
WJEC qualifications are taken mainly in Wales; schools in England usually take the same board's Eduqas specifications. Tell your tutor whether you're on WJEC or Eduqas, which specification year, and your tier, and lessons will match it.
Here is a typical calculation: an image of a cell is 30 mm long at × 1,500 magnification. Find its real length.
| Step | Working |
|---|---|
| Formula | Real size = image size ÷ magnification |
| Calculation | 30 mm ÷ 1,500 = 0.02 mm |
| Convert | 20 µm |
Students most often lose marks through the habits below. Each is easy to fix with practice and feedback.
| Mark-loser | What to do instead |
|---|---|
| Units missing | Give units with every answer |
| Vague extended answers | Use a logical sequence and key terms |
| Graphs unlabelled | Label axes with units and plot accurately |
| Data described, not analysed | Quote values and explain trends |
| Weak evaluation in Unit 3 | Name specific errors and improvements |
Lessons are live and one to one on video with a shared whiteboard. Your tutor starts with a quick diagnostic, plans lessons around your weakest topics, sets exam-style questions between sessions and marks them against the WJEC mark scheme. Suitable for Year 10 and 11 students, resit candidates and home-schooled students. For specific questions, try homework help or see our Biology subject page.
WJEC GCSE Biology past papers show you how Units 1 and 2 are examined, and this course pairs them with live 1-to-1 lessons and preparation for the Unit 3 practical assessment.
This course suits students in Wales taking WJEC GCSE Biology at Foundation or Higher tier.
Prerequisites: basic science and maths, and basic knowledge of living organisms.
Course length: 45 lessons across 2 units.
| Stage | Topics | What you can do afterwards |
|---|---|---|
| 1 | Cells, organ systems and ecosystems | Explain cells, body systems and ecosystems |
| 2 | Variation, homeostasis and micro-organisms | Explain inheritance, body control and disease |
| 3 | Past paper practice; practical assessment preparation | Answer exam questions under timing and prepare for Unit 3 |
Where it leads: see the AQA GCSE Biology course if you study outside Wales, or our biology tutoring page.
WJEC GCSEs are taken mainly by students in Wales. Schools in England usually use Eduqas, WJEC's English brand.
By two written unit exams and a practical assessment.
Cells, organ systems and ecosystems.
Variation, homeostasis and micro-organisms.
Yes. Wales is introducing new Made-for-Wales GCSEs, so check which specification your school follows.
Yes. Tutors help you understand the techniques and practise data analysis and evaluation. The assessment itself is done in school.
WJEC GCSEs taken in Wales are graded A* to G, not 9 to 1. Foundation tier gives access to the lower grades and Higher tier to the top grades. Eduqas GCSEs in England are graded 9 to 1.
Yes. Tutors follow the Eduqas specification if that's what your school uses.
The price depends on the tutor and session length. You see the hourly rate before booking, with no subscription.
Yes. Tutors use WJEC-style questions and mark schemes.
WJEC publishes grade boundaries for WJEC GCSE Biology after each exam series, and they change from year to year with paper difficulty. They show the raw marks needed for each grade. Your tutor marks full past papers and compares your scores with recent boundaries to estimate your grade and target the topics that matter most.
No. Unit 3 is untiered and externally marked.
Section A, obtaining results in groups (6 marks, 60 minutes), and Section B, analysing individually (24 marks, 60 minutes).
No. Qualifications Wales says this specification continues until at least summer 2031.
WJEC publishes recent WJEC GCSE Biology past papers, mark schemes and examiner reports on its website, and schools can access more through their secure portals. Use them under timed conditions, then mark your answers carefully with the mark scheme. Your tutor sets past-paper questions topic by topic, then full timed papers closer to your exam.
Magnification = image size ÷ real size; convert mm to µm by multiplying by 1,000.
Yes. You can book one session to see if the tutor suits you, with no subscription.
Weekly lessons suit most students; add extra sessions before exams.
Yes. Tutors can set past-paper questions and go through them in the next session.
Yes. Lessons are online, so you can book times that suit your time zone.
Start with questions on one topic while you are learning it, then move to full timed WJEC GCSE Biology past papers near your exam. Mark each answer with the mark scheme and note where marks were lost. Your 1-to-1 tutor uses those notes to plan your next lessons.
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