Pearson Edexcel International GCSE Biology questions by topic
Pearson Edexcel International GCSE Biology (4BI1) is assessed in two papers, 1B and 2B. ALN includes questions from both and groups them by specification section, such as nutrition, inheritance, and ecology and the environment, using papers from the January, June and November series.
Step-by-step model answers
394 of 394 questions in this course have a model answer that walks through how to earn each mark, not just what the mark scheme lists. More are added paper by paper.
See a real example- 394 questions
- 47 past papers
- 14 exam series, June 2019 to June 2025
- Paper Analysis for 47 of 47 papers
The Free plan includes a daily allowance of questions with their mark schemes. Questions are shown only after you log in.
Topics in this course
Specification headings, with how many ALN questions are matched to each. A question can test more than one heading.
- 1 · The nature and variety of living organisms34 questions
- 2 · Structure and functions in living organisms303 questions
- 3 · Reproduction and inheritance125 questions
- 4 · Ecology and the environment81 questions
- 5 · Use of biological resources83 questions
Most-examined topics
From Paper Analysis: the sub-sections that came up in the largest share of the papers we have analysed. These are past counts, not predictions.
- NutritionStructure and functions in living organisms · in 24 of 24 analysed Paper 1B papers, about 34 marks when it appears
- InheritanceReproduction and inheritance · in 24 of 24 analysed Paper 1B papers, about 21 marks when it appears
- Feeding relationshipsEcology and the environment · in 24 of 24 analysed Paper 1B papers, about 11 marks when it appears
- TransportStructure and functions in living organisms · in 23 of 23 analysed Paper 2B papers, about 21 marks when it appears
- ReproductionReproduction and inheritance · in 23 of 24 analysed Paper 1B papers, about 23 marks when it appears
The full breakdown by specification point, with the questions behind each count, is in Paper Analysis on the Basic and Premium plans.
Model answers by paper
Counts update automatically as papers and model answers are added. Recent papers appear once the exam board has released them publicly.
| Paper | With model answers | Questions | Past papers | In Paper Analysis |
|---|---|---|---|---|
| Paper 1B | 247 (100%) | 247 | 24 | 24 of 24 |
| Paper 2B | 147 (100%) | 147 | 23 | 23 of 23 |