SL/HL
First teaching 2023, First exam 2025
By Raahath Kazi
SL Notes
A1.1 Water
A1.2 Nucleic Acids
A2.2 Cell Structure
A4.1 Evolution and Speciation
Form & Function
B1.1 Carbs & Lipids
B1.2 Proteins
B2.1 Membranes & Transport
B2.2 Organelles & Compartmentalization
B2.3 Cell Specialization
B3.1 Gas Exchange
B3.2 Transport
B4.1 Ecological Niches
Interaction & Interdependence
C1.1 Enzymes & Metabolism
C1.2 Cell Respiration
C1.3 Photosynthesis
C2.2 Neural Signaling
C3.1 Integration of Body Systems
C3.2 Defense against disease
C4.1 Populations and Communities
Continuity & Change
D1.1 DNA replication
D1.2 Proteinsynthesis
D1.3 Mutation and Gene editing
D2.1 Cell and Nuclear Division
D2.3 Water Potential
D3.1 Reproduction
D3.2 Inheritance
D3.3 Homeostasis
D4.2 Stability and Change
D4.1 Natural selection
HL Notes
HL Bio Notes
Quizlets
Textbooks
Pearson Textbook
Oxford Textbook
Oxford Study Guide
Useful Resources
OSC Youtube Channel
Save My Exams
Note Worthy Science
Revision Village
Biology for Life
BioNinja