IB BIOLOGY
Form & Function
Structure and Process
Explore how biological structures are perfectly adapted to their functions – from molecular transport to muscle movement and environmental adaptation.
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Select a topic below to access comprehensive study materials
Molecular & Cellular Structure
Study the fundamental building blocks of life – proteins, carbohydrates, lipids, and cellular organization.
Proteins
Carbohydrates & Lipids
Organelles
Cell Specialisation
Transport & Movement
Understand how substances move through biological systems and how organisms achieve motion.
Transport Systems
Membrane Transport
Muscle & Motility
Gas Exchange
Environmental Interactions
Explore how organisms adapt to their environments and find their ecological niches.
Environmental Adaptation
Ecological Niches
📊 Form & Function Overview
Complete collection of structural and functional biology materials
10
PDF Resources
3
Topic Categories
HL
Higher Level
2025
Curriculum
💡 Key Concepts
Understanding how structure relates to function in biological systems
Structure-Function Relationship
Every biological structure is perfectly adapted to perform its specific function
Surface Area to Volume
Size and shape optimizations for efficient transport and exchange
Transport Mechanisms
Passive and active processes that move substances across membranes
Specialization
How cells and organisms become specialized for specific roles