Edexcel IGCSE Biology Past Papers
GradeMax provides comprehensive IGCSE Biology revision with real past paper questions organized by topic. Practice cells, genetics, ecology, human biology, and plant biology with mark schemes.
9 years of papers (2017–2025) · 5 topics · Mark schemes included · Free download
IGCSE Biology Topics
Practice topic-wise Edexcel IGCSE Biology past paper questions with mark schemes
Nature and Variety of Living Organisms
Characteristics of life, classification, and variety of organisms.
Structures and Functions in Living Organisms
Cells, enzymes, nutrition, respiration, gas exchange, and transport.
Reproduction and Inheritance
Reproduction, cell division, genetics, and evolution.
Ecology and the Environment
Ecosystems, food chains, nutrient cycles, and human impact.
Use of Biological Resources
Food production, selective breeding, genetic modification, and cloning.
IGCSE Biology Past Papers by Year
IGCSE Biology — Frequently Asked Questions
What topics are in IGCSE Biology?
IGCSE Biology covers: Nature and Variety of Living Organisms, Structures and Functions (cells, enzymes, respiration), Reproduction and Inheritance (genetics), Ecology and Environment, and Use of Biological Resources.
How do you draw a Punnett square?
To draw a Punnett square: 1) Write parent genotypes, 2) Split alleles - one parent across top, one down side, 3) Fill in boxes by combining alleles, 4) Calculate phenotype ratios from results.
What is the difference between mitosis and meiosis?
Mitosis produces 2 identical diploid cells for growth/repair. Meiosis produces 4 different haploid cells (gametes) for sexual reproduction. Meiosis involves crossing over and creates genetic variation.
How many papers are in IGCSE Biology?
Edexcel IGCSE Biology has two papers: Paper 1 (2 hours, 110 marks) and Paper 2 (1 hour 15 minutes, 70 marks). Both are written exams covering all topics.
What equations do I need for IGCSE Biology?
Key equations: Photosynthesis (CO₂ + H₂O → glucose + O₂), Aerobic respiration (glucose + O₂ → CO₂ + H₂O + energy), Magnification = image size / actual size.