Biology SL
3,739+ IB Questions
Browse through the available chapters to select a topic aligned with your learning goals, then dive deeper into the material to refine your understanding.
2025
2016-2024
Theme A - Unity & Diversity
193 Questions
A.1 - Water
22 Questions
A.2 - Nucleic Acids
26 Questions
A.3 - Origins Of Cells
11 Questions
A.4 - Cell Structure
53 Questions
A.5 - Viruses
6 Questions
A.6 - Diversity Of Organisms
20 Questions
A.7 - Classification & Cladistics
33 Questions
A.8 - Evolution & Speciation
21 Questions
A.9 - Conservation Of Biodiversity
1 Questions
Theme B - Form & Function
244 Questions
B.1 - Carbohydrates & Lipids
49 Questions
B.2 - Proteins
17 Questions
B.3 - Membranes & Membrane Transport
49 Questions
B.4 - Organelles & Compartmentalization
31 Questions
B.5 - Cell Specialization
14 Questions
B.6 - Gas Exchange
31 Questions
B.7 - Transport
42 Questions
B.8 - Muscle & Motility
5 Questions
B.9 - Adaptation To Environment
5 Questions
B.10 - Ecological Niches
1 Questions
Theme C - Interaction & Interdependence
385 Questions
C.1 - Enzymes & Metabolism
67 Questions
C.2 - Cell Respiration
27 Questions
C.3 - Photosynthesis
37 Questions
C.4 - Chemical Signalling
16 Questions
C.5 - Neural Signalling
30 Questions
C.6 - Integration Of Body Systems
24 Questions
C.7 - Defence Against Disease
49 Questions
C.8 - Populations & Communities
75 Questions
C.9 - Transfers Of Energy & Matter
60 Questions
Theme D - Continuity & Change
470 Questions
D.1 - DNA Replication
50 Questions
D.2 - Protein Synthesis
32 Questions
D.3 - Mutation & Gene Editing
38 Questions
D.4 - Cell & Nuclear Division
91 Questions
D.5 - Gene Expression
7 Questions
D.6 - Water Potential
5 Questions
D.7 - Reproduction
61 Questions
D.8 - Inheritance
108 Questions
D.9 - Homeostasis
39 Questions
D.10 - Natural Selection
18 Questions
Topic 12 - Climate Change
21 Questions