Use the BIOLOGY 2025 GUIDE to fill in the blanks, then check your understanding with the QUICK MULTIPLE CHOICE quizzes.
A 2.2 Cell Structure
A 2.3 Viruses (HL ONLY)
A 2.1 Origins of cells (HL ONLY)
B 2.2 Organelles and Compartmentalization
B. 2.1 Membranes and Membrane Transport
A 1.1 Water
D 2.3 Water Potential
Guide (SL/HL) and Fill-in Sheets:
B 1.1 Carbohydrates and Lipids
B 1.2 Proteins
C 1.1 Enzymes and Metabolism
C 1.2 Cell respiration
C 1.3 Photosynthesis
Guide (SL/HL) and Fill-in Sheets
A 1.2 Nucleic Acids
D 1.2 Protein Synthesis
D 2.2 Gene Expression (HL only)
D 1.1 DNA Replication
B 2.3 Cell Specialization
D 2.1 Cell and Nuclear Division
D 1.1 Mutations and Gene Editing
D. 3.2 Inheritance
Guide (SL/HL) and Fill-in Sheets:
Multiple choice:
C 2.1 Chemical Signalling (HL ONLY)
C 2.2 Neural Signalling
C 3.1 Integration of Body Systems
C 3.2 Defence against Disease
Guide (SL/HL) and Fill-in Sheets:
Multiple choice:
C. 4.1 Populations and Communities
C 4.2 Transfers of Energy and Matter
D 4.1 Natural Selection
D 4.2 Stability and Change
D 4.3 Climate Change
Guide (SL/HL) and Fill-in Sheets
Multiple choice: