Edexcel GCSE Biology
Explore your course, one topic at a time.
Course overview
The PEARSON-EDEXCEL GCSE Biology specification covers 9 topics with 496 learning objectives (1BI0). Use the topic browser below to explore subtopics, exam tips, common mistakes, and key terminology for each area of the course.
- 9 topics
- 145 study pages
- 496 learning objectives
- 444
- practice questions
- 165
- teaching notes
- 9
- topics
Your exams
- Paper 1 Foundation TierTuesday, 11 May 2027, AM
- Paper 1 Higher TierTuesday, 11 May 2027, AM
- Paper 2 Foundation TierThursday, 10 June 2027, AM
- Paper 2 Higher TierThursday, 10 June 2027, AM
Always confirm dates and times with your exam centre.
| Paper | Time | Marks | Weight |
|---|---|---|---|
| Paper 1 (Foundation) (Foundation) | 105 min | 100 | 50% |
| Paper 1 (Higher) (Higher) | 105 min | 100 | 50% |
| Paper 2 (Foundation) (Foundation) | 105 min | 100 | 50% |
| Paper 2 (Higher) (Higher) | 105 min | 100 | 50% |
Explore your topics
9 topics
Key concepts in biology1 topic
Cells and control1 topic
Genetics1 topic
Natural selection and genetic modification1 topic
Health, disease and the development of medicines1 topic
Plant structures and their functions1 topic
Animal coordination, control and homeostasis1 topic
Exchange and transport in animals1 topic
Ecosystems and material cycles1 topic
About this course
About Pearson Edexcel GCSE Biology
Pearson Edexcel GCSE Biology (1BI0) offers a comprehensive exploration of the living world, from cellular processes to entire ecosystems. The course is designed to spark curiosity about biological principles while building essential practical and analytical skills. Students will investigate topics such as genetics, evolution, health, and environmental biology, all framed within real-world contexts.
The specification is structured into clear topic areas that build on prior knowledge from Key Stage 3 and prepare students for A-level study. It emphasises the application of biological concepts to modern issues like antibiotic resistance and climate change. With a strong focus on hands-on core practicals, this course equips learners with the scientific methodology needed for further education and careers in science.
Assessment Structure
The Pearson Edexcel GCSE Biology qualification is assessed through two written examination papers, each contributing 50% of the final grade. Paper 1 covers topics 1-5 (cell biology, organisation, infection and response, and bioenergetics) and Paper 2 covers topics 6-9 (homeostasis, inheritance, variation and evolution, and ecology). Both papers are 1 hour and 45 minutes long, worth 100 marks each, and include a mix of multiple-choice, short-answer, and extended-response questions. There is no coursework component; instead, practical skills are assessed through questions about the eight core practicals that students must complete during the course.
Why Choose Pearson Edexcel?
- Clear and logical progression: The Edexcel specification is divided into distinct topic areas that build sequentially, making it easier for students to track their learning and identify gaps. This structure is particularly helpful for revision planning and exam preparation.
- Emphasis on real-world applications: Edexcel integrates contemporary biological issues, such as the use of stem cells and the impact of human activity on biodiversity, into the curriculum. This makes the subject more engaging and helps students see the relevance of biology in everyday life.
- Supportive assessment style: The exam papers use a variety of question types, including multiple-choice and short-answer questions, which can be less intimidating for students than purely essay-based exams. Additionally, the clear mark schemes and accessible language used in Edexcel papers often help students perform to their full potential.
Frequently Asked Questions
What is the difference between Edexcel GCSE Biology and the combined science qualification?
How many core practicals are required for Edexcel GCSE Biology, and are they assessed?
Are the Edexcel GCSE Biology exams tiered?
What is the best way to revise for the Edexcel GCSE Biology exams?
Can I take Edexcel GCSE Biology if I am not strong at maths?
Assessment and exam guidance
What Gets Top Grades
Knowledge & Understanding
Demonstrates comprehensive and accurate knowledge
- Uses correct subject-specific terminology
- Shows detailed understanding of concepts
- Makes accurate connections between topics
- Demonstrates depth beyond surface-level knowledge
Application
Applies knowledge effectively to new contexts
- Selects relevant knowledge for the question
- Adapts understanding to unfamiliar scenarios
- Uses examples appropriately
- Shows awareness of context
Analysis & Evaluation
Develops sophisticated analytical arguments
- Constructs logical chains of reasoning
- Considers multiple perspectives
- Weighs evidence to reach justified conclusions
- Acknowledges limitations and nuances
Key Command Words
Give a single fact or term
Name, select, or recognise
Set out main features briefly
Give an account of what something is like or what happens
Give reasons with developed cause→effect chains
State similarities AND differences (both required)
Examine in detail showing cause→effect→consequence chains
Weigh up BOTH sides, reach JUSTIFIED conclusion
Make judgments about importance with justification
Show formula→substitution→calculation→answer with units
Tips and common mistakes
Common Exam Mistakes
Pitfalls to avoid in your exams
- •Listing structures without linking each to its function; correction: state the job of every structure named.
- •Saying bacteria have a nucleus because they contain DNA; correction: bacterial DNA is a chromosomal loop not enclosed in a nucleus, plus plasmid DNA.
- •Claiming the cell wall controls what enters the cell; correction: the cell membrane controls entry and exit, while the plant cell wall gives support and shape.
- •Describing mitochondria as making energy from nothing; correction: mitochondria are the site of aerobic respiration, which releases energy.
- •Saying the sperm nucleus is diploid; correction: it is haploid, carrying one set of chromosomes.
- •Describing the acrosome as providing energy; correction: the acrosome contains enzymes to digest the egg membrane, while mitochondria supply energy.
- •Ignoring the change in the egg cell membrane after fertilisation; correction: state that it prevents further sperm entering.
- •Describing cilia as moving the cell itself; correction: cilia beat to move mucus and trapped particles along the surface.
Top Examiner Tips
Expert advice for exam success
- •Read the question stem to see whether it asks for structure, function or both, and answer both parts.
- •Use precise terms such as 'site of aerobic respiration' and 'controls movement of substances', not vague words like 'helps'.
- •When comparing prokaryotic and eukaryotic cells, name at least one structure present in one type and absent in the other.
- •For each cell, name the adaptation and then state the function it performs, using a linking phrase such as 'so that' or 'which allows'.
- •Use the correct terms 'haploid' and 'diploid' and apply them to the right nucleus.
- •When asked about ciliated epithelial cells, mention both the cilia and what they move.
- •Always link the technology change (electrons, shorter wavelength) to the consequence (higher resolution).
- •Use a named organelle to show how clearer viewing improved understanding of its role.
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