Edexcel GCSE Biology specification (1BI0)
Understanding the exam specification is key to doing well in your Edexcel GCSE Biology exam. It lays out exactly what you need to learn, how you'll be assessed, and what skills the examiners seek. Whether you're working through the course for the first time or revising for your final exams, the specification helps you stay focused and confident in your preparation.
We've included helpful revision tools to support you in putting the specification into practice. Wherever you're starting from, you'll find everything you need to feel prepared, from the official specification to high-quality resources designed to help you succeed.
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In the next section, you'll find a simplified summary of the official Edexcel GCSE Biology specification, along with a breakdown of key topics, assessment structure, and useful study resources. We've also included links to topic-level guides and revision tools to help you put the specification into practice.
Contents
Disclaimer
This page includes a summary of the official Edexcel GCSE Biology (1BI0) specification, provided to support your revision. While we've made every effort to ensure accuracy, Save My Exams is not affiliated with the awarding body.
For the most complete and up-to-date information, we strongly recommend consulting the official Edexcel specification PDF.
Specification overview
The GCSE Biology course develops learners’ understanding of living systems and life processes, with a focus on scientific thinking and practical investigation. It encourages learners to explore biological concepts that affect individuals, society and the environment. The course supports progression to further study by enhancing problem-solving, analytical and data-handling skills. Through engaging with areas such as genetics, ecosystems, and body systems, learners gain a deeper appreciation of biology’s relevance to real-world challenges.Subject content breakdown
1. Cell biology
- Cell structure and microscopy.
- Transport in cells (osmosis, diffusion, active transport).
- Cell division and stem cells.
2. Organisation
- Principles of biological organisation.
- Digestive system, enzymes, and food tests.
- Circulatory and respiratory systems.
- Health and non-communicable diseases.
- Plant tissues and transport.
3. Infection and response
- Pathogens and disease transmission.
- Immune system, vaccinations, and antibiotics.
- Drug development and monoclonal antibodies.
4. Bioenergetics
- Photosynthesis and limiting factors.
- Uses of glucose in plants.
- Aerobic and anaerobic respiration.
- Metabolism.
5. Homeostasis and response
- Nervous system and reflexes.
- Hormonal coordination.
- Regulation of blood glucose, water, and temperature.
- Hormones in human reproduction and contraception.
6. Inheritance, variation and evolution
- Sexual and asexual reproduction.
- DNA, genes, and protein synthesis.
- Genetic inheritance and genetic disorders.
- Evolution, selective breeding, and genetic engineering.
7. Ecology
- Ecosystems and communities.
- Biodiversity and human impact.
- Food chains, pollution, and land use.
- Decomposition and material cycles.
Assessment structure
Paper 1
- Topics: Cell biology, Organisation, Infection and response, Bioenergetics.
- Written exam: 1 hour 45 minutes.
- 100 marks; 50% of GCSE.
- Question types: multiple choice, structured, short answer, and extended response.
Paper 2
- Topics: Homeostasis and response, Inheritance, variation and evolution, Ecology.
- Written exam: 1 hour 45 minutes.
- 100 marks; 50% of GCSE.
Question types: multiple choice, structured, short answer, and extended response.
- Assessment includes analysis of practical work and data.
- At least 10% of marks assess mathematical skills.
- 8 required practicals integrated across both papers.
Key tips for success
Doing well in your Edexcel GCSE Biology isn't just about how much you study, but how you study. Here are a few proven tips to help you stay on track
- Start with a clear plan: Break the subject into topics and create a revision schedule that allows enough time for each. Start early to avoid last-minute stress.
- Focus on understanding, not memorising: Use our revision notes to build a strong foundation in each topic, making sure you actually understand the material.
- Practise regularly: Attempt past papers to familiarise yourself with the exam format and timing. Mark your answers to see how close you are to full marks.
- Be strategic with your revision: Use exam questions by topic to focus on weaker areas, and flashcards to reinforce important facts and terminology.
- Learn from mistakes: Whether it's from mock exams or practice questions, spend time reviewing what went wrong and why. This helps prevent repeat mistakes in the real exam.
- Stay balanced: Don't forget to take regular breaks, eat well, and get enough sleep, a healthy routine makes revision much more effective.
With the right approach and consistent practice, you'll build confidence and improve your chances of exam success.
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