Online Past-Year Questions with Answers for IGCSE Biology Extended (Paper 2 & Paper 4)
Access exam-style, topic-wise practice questions based on previous years’ papers for IGCSE Biology Extended Paper 2 and Paper 4. This comprehensive question bank also includes detailed solutions, study notes, mock papers, and much more.
Our resource is carefully developed from many years of past examination papers and is designed to help students master the complete IGCSE Biology Extended syllabus through structured and targeted practice.
What’s Included
- Topic-wise online practice questions covering the full syllabus
- Step-by-step solutions with instant answers
- Helpful hints and explanations
- Exposure to exam-style questions used in past assessments
- Over 1000 practice questions
- Concise study notes
- Full-length mock papers
Benefits of Attempting Topic-wise Exam-Style Practice Questions
Below are some key advantages of using IGCSE Biology Paper 2 & Paper 4 practice questions at IITian Academy:
- Supports Effective Revision
Practicing questions regularly helps reinforce concepts and revise important topics efficiently. - Improves Speed and Accuracy
Online practice enhances time management skills and increases accuracy in answering questions. - Builds Confidence and Motivation
Continuous practice and performance tracking help students see steady improvement, boosting both confidence and motivation for the final examination.
Curriculum
- 24 Sections
- 189 Lessons
- 12 Weeks
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- Unit 1. Characteristics and classification of living organisms6
- 1.11.1 Characteristics of living organisms iGCSE Style Questions Paper 2
- 1.21.1 Characteristics of living organisms iGCSE Style Questions Paper 4
- 1.31.2 Concept and uses of classification systems iGCSE Style Questions Paper 2
- 1.41.2 Concept and uses of classification systems iGCSE Style Questions Paper 4
- 1.51.3 Features of organisms iGCSE Style Questions Paper 2
- 1.61.3 Features of organisms iGCSE Style Questions Paper 4
- Unit 2. Organization of the organism4
- Unit 3. Movement into and out of cells6
- Unit 4. Biological molecules2
- Unit 5. Enzymes2
- Unit 6. Plant nutrition4
- Unit 7. Human nutrition10
- 7.17.1 Diet iGCSE Style Questions Paper 2
- 7.27.1 Diet iGCSE Style Questions Paper 4
- 7.37.2 Digestive system iGCSE Style Questions Paper 2
- 7.47.2 Digestive system iGCSE Style Questions Paper 4
- 7.57.3 Physical digestion iGCSE Style Questions Paper 2
- 7.67.3 Physical digestion iGCSE Style Questions Paper 4
- 7.77.4 Chemical digestion iGCSE Style Questions Paper 2
- 7.87.4 Chemical digestion iGCSE Style Questions Paper 4
- 7.97.5 Absorption iGCSE Style Questions Paper 2
- 7.107.5 Absorption iGCSE Style Questions Paper 4
- Unit 8. Transport in plants8
- 8.18.1 Xylem and phloem iGCSE Style Questions Paper 2
- 8.28.1 Xylem and phloem iGCSE Style Questions Paper 4
- 8.38.2 Water uptake iGCSE Style Questions Paper 2
- 8.48.2 Water uptake iGCSE Style Questions Paper 4
- 8.58.3 Transpiration iGCSE Style Questions Paper 2
- 8.68.3 Transpiration iGCSE Style Questions Paper 4
- 8.78.4 Translocation iGCSE Style Questions Paper 2
- 8.88.4 Translocation iGCSE Style Questions Paper 4
- Unit 9. Transport in animals8
- 9.19.1 Circulatory systems iGCSE Style Questions Paper 2
- 9.29.1 Circulatory systems iGCSE Style Questions Paper 4
- 9.39.2 Heart iGCSE Style Questions Paper 2
- 9.49.2 Heart iGCSE Style Questions Paper 4
- 9.59.3 Blood vessels iGCSE Style Questions Paper 2
- 9.69.3 Blood vessels iGCSE Style Questions Paper 4
- 9.79.4 Blood iGCSE Style Questions Paper 2
- 9.89.4 Blood iGCSE Style Questions Paper 4
- Unit 10. Diseases and immunity2
- Unit 11. Gas exchange in humans2
- Unit 12. Respiration6
- 12.112.1 Respiration iGCSE Style Questions Paper 2
- 12.212.1 Respiration iGCSE Style Questions Paper 4
- 12.312.2 Aerobic respiration iGCSE Style Questions Paper 2
- 12.412.2 Aerobic respiration iGCSE Style Questions Paper 4
- 12.512.3 Anaerobic respiration iGCSE Style Questions Paper 2
- 12.612.3 Anaerobic respiration iGCSE Style Questions Paper 4
- Unit 13. Excretion in humans2
- Unit 14. Coordination and response10
- 14.114.1 Coordination and response iGCSE Style Questions Paper 2
- 14.214.1 Coordination and response iGCSE Style Questions Paper 4
- 14.314.2 Sense organs iGCSE Style Questions Paper 2
- 14.414.2 Sense organs iGCSE Style Questions Paper 4
- 14.514.3 Hormones iGCSE Style Questions Paper 2
- 14.614.3 Hormones iGCSE Style Questions Paper 4
- 14.714.4 Homeostasis iGCSE Style Questions Paper 2
- 14.814.4 Homeostasis iGCSE Style Questions Paper 4
- 14.914.5 Tropic responses iGCSE Style Questions Paper 2
- 14.1014.5 Tropic responses iGCSE Style Questions Paper 4
- Unit 15. Drugs2
- Unit 16. Reproduction12
- 16.116.1 Asexual reproduction iGCSE Style Questions Paper 2
- 16.216.1 Asexual reproduction iGCSE Style Questions Paper 4
- 16.316.2 Sexual reproduction iGCSE Style Questions Paper 2
- 16.416.2 Sexual reproduction iGCSE Style Questions Paper 4
- 16.516.3 Sexual reproduction in plants iGCSE Style Questions Paper 2
- 16.616.3 Sexual reproduction in plants iGCSE Style Questions Paper 4
- 16.716.4 Sexual reproduction in humans iGCSE Style Questions Paper 2
- 16.816.4 Sexual reproduction in humans iGCSE Style Questions Paper 4
- 16.916.5 Sexual hormones in humans iGCSE Style Questions Paper 2
- 16.1016.5 Sexual hormones in humans iGCSE Style Questions Paper 4
- 16.1116.6 Sexually transmitted infections iGCSE Style Questions Paper 2
- 16.1216.6 Sexually transmitted infections iGCSE Style Questions Paper 4
- Unit 17. Inheritance8
- 17.117.1 Chromosomes, genes and proteins iGCSE Style Questions Paper 2
- 17.217.1 Chromosomes, genes and proteins iGCSE Style Questions Paper 4
- 17.317.2 Mitosis iGCSE Style Questions Paper 2
- 17.417.2 Mitosis iGCSE Style Questions Paper 4
- 17.517.3 Meiosis iGCSE Style Questions Paper 2
- 17.617.3 Meiosis iGCSE Style Questions Paper 4
- 17.717.4 Monohybrid inheritance iGCSE Style Questions Paper 2
- 17.817.4 Monohybrid inheritance iGCSE Style Questions Paper 4
- Unit 18. Variation and selection6
- 18.118.1 Variation iGCSE Style Questions Paper 2
- 18.218.1 Variation iGCSE Style Questions Paper 4
- 18.318.2 Adaptive features iGCSE Style Questions Paper 2
- 18.418.2 Adaptive features iGCSE Style Questions Paper 4
- 18.518.3 Selection iGCSE Style Questions Paper 2
- 18.618.3 Selection iGCSE Style Questions Paper 4
- Unit 19. Organisms and their environment8
- 19.119.1 Energy flow iGCSE Style Questions Paper 2
- 19.219.1 Energy flow iGCSE Style Questions Paper 4
- 19.319.2 Food chains and food webs iGCSE Style Questions Paper 2
- 19.419.2 Food chains and food webs iGCSE Style Questions Paper 4
- 19.519.3 Nutrient cycles iGCSE Style Questions Paper 2
- 19.619.3 Nutrient cycles iGCSE Style Questions Paper 4
- 19.719.4 Populations iGCSE Style Questions Paper 2
- 19.819.4 Populations iGCSE Style Questions Paper 4
- Unit 20. Human influences on ecosystems8
- 20.120.1 Food supply iGCSE Style Questions Paper 2
- 20.220.1 Food supply iGCSE Style Questions Paper 4
- 20.320.2 Habitat destruction iGCSE Style Questions Paper 2
- 20.420.2 Habitat destruction iGCSE Style Questions Paper 4
- 20.520.3 Pollution iGCSE Style Questions Paper 2
- 20.620.3 Pollution iGCSE Style Questions Paper 4
- 20.720.4 Conservation iGCSE Style Questions Paper 2
- 20.820.4 Conservation iGCSE Style Questions Paper 4
- Unit 21. Biotechnology and genetic modification6
- 21.121.1 Biotechnology and genetic modification iGCSE Style Questions Paper 2
- 21.221.1 Biotechnology and genetic modification iGCSE Style Questions Paper 4
- 21.321.2 Biotechnology iGCSE Style Questions Paper 2
- 21.421.2 Biotechnology iGCSE Style Questions Paper 4
- 21.521.3 Genetic modification iGCSE Style Questions Paper 2
- 21.621.3 Genetic modification iGCSE Style Questions Paper 4
- CIE iGCSE Biology Revision Notes - New Syllabus 2026, 2027 & 202861
- 22.11.1 Characteristics of living organisms Study Notes
- 22.21.2 Concept and uses of classification systems Study Notes
- 22.31.3 Features of organisms Study Notes
- 22.42.1 Cell structure Study Notes
- 22.52.2 Size of specimens Study Notes
- 22.63.1 Diffusion Study Notes
- 22.73.2 Osmosis Study Notes
- 22.83.3 Active transport Study Notes
- 22.94.1 Biological molecules Study Notes
- 22.105.1 Enzymes Study Notes
- 22.116.1 Photosynthesis Study Notes
- 22.126.2 Leaf structure Study Notes
- 22.137.1 Diet Study Notes
- 22.147.2 Digestive system Study Notes
- 22.157.3 Physical digestion Study Notes
- 22.167.4 Chemical digestion Study Notes
- 22.177.5 Absorption Study Notes
- 22.188.1 Xylem and phloem Study Notes
- 22.198.2 Water uptake Study Notes
- 22.208.3 Transpiration Study Notes
- 22.218.4 Translocation Study Notes
- 22.229.1 Circulatory systems Study Notes
- 22.239.2 Heart Study Notes
- 22.249.3 Blood vessels Study Notes
- 22.259.4 Blood Study Notes
- 22.2610.1 Diseases and immunity Study Notes
- 22.2711.1 Gas exchange in humans Study Notes
- 22.2812.1 Respiration Study Notes
- 22.2912.2 Aerobic respiration Study Notes
- 22.3012.3 Anaerobic respiration Study Notes
- 22.3113.1 Excretion in humans Study Notes
- 22.3214.1 Coordination and response Study Notes
- 22.3314.2 Sense organs Study Notes
- 22.3414.3 Hormones Study Notes
- 22.3514.4 Homeostasis Study Notes
- 22.3614.5 Tropic responses Study Notes
- 22.3715.1 Drugs Study Notes
- 22.3816.1 Asexual reproduction Study Notes
- 22.3916.2 Sexual reproduction Study Notes
- 22.4016.3 Sexual reproduction in plants Study Notes
- 22.4116.4 Sexual reproduction in humans Study Notes
- 22.4216.5 Sex hormones in humans Study Notes
- 22.4316.6 Sexually transmitted infections Study Notes
- 22.4417.1 Chromosomes, genes and proteins Study Notes
- 22.4517.2 Mitosis Study Notes
- 22.4617.3 Meiosis Study Notes
- 22.4717.4 Monohybrid inheritance Study Notes
- 22.4818.1 Variation Study Notes
- 22.4918.2 Adaptive features Study Notes
- 22.5018.3 Selection Study Notes
- 22.5119.1 Energy flow Study Notes
- 22.5219.2 Food chains and food webs Study Notes
- 22.5319.3 Nutrient cycles Study Notes
- 22.5419.4 Populations Study Notes
- 22.5520.1 Food supply Study Notes
- 22.5620.2 Habitat destruction Study Notes
- 22.5720.3 Pollution Study Notes
- 22.5820.4 Conservation Study Notes
- 22.5921.1 Biotechnology and genetic modification Study Notes
- 22.6021.2 Biotechnology Study Notes
- 22.6121.3 Genetic modification Study Notes
- CIE IGCSE Biology(0610) Mock test 2026 Paper 23
- CIE IGCSE Biology(0610) Mock test 2026 Paper 43
