2025-10-14
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2024-04-04
IB Diploma Biology HL
Topical Past Papers Topical eBooks
WHY CHOOSE THIS SYLLABUS?
Biology is the study of life. The vast diversity of species makes biology both an endless source of fascination and a considerable challenge. Biologists attempt to understand the living world at all levels from the micro to the macro using many different approaches and techniques. Biology is still a young science and great progress is expected in the 21st century. This progress is important at a time of growing pressure on the human population and the environment.
By studying biology in the DP students should become aware of how scientists work and communicate with each other. While the scientific method may take on a wide variety of forms, it is the emphasis on a practical approach through experimental work that characterizes the sciences. Teachers provide students with opportunities to design investigations, collect data, develop manipulative skills, analyse results, collaborate with peers and evaluate and communicate their findings.
ASSESSMENT OVERVIEW
Paper 1:
- 40 multiple-choice questions
- 1 hour
- 20% weighting of final grade
Paper 2:
- Data-based, short answer and extended response questions
- 2 hours 15 minutes
- 36% weighting of final grade
Paper 3:
- Data-based, short answer and extended response questions
- 1 hour 15 minutes
- 24% weighting of final grade
SUBJECT CONTENT
Core
- Cell biology
- Molecular biology
- Genetics
- Ecology
- Evolution and biodiversity
- Human physiology
Additional Higher Level
- Nucleic acids
- Metabolism, cell respiration and photosynthesis
- Plant biology
- Genetics and evolution
- Animal physiology
SOURCE
https://www.ibo.org/
