Paper 1
SL
- Time: 45 minutes (30 marks)
- 30 multiple – choice questions (core)
- No marks deducted from incorrect answers
- NO CALCULATOR ALLOWED
- Data booklet provided
- 20% weight
HL
- Time: 60 minutes (40 marks)
- 40 multiple – choice questions (core & AHL)
- No marks deducted from incorrect answers
- NO CALCULATOR ALLOWED
- Data booklet provided
- 20% weight
Topic 1: Cell biology
- Biology 1.1 Introduction to cells SL Paper 1
- Biology 1.2 Ultrastructure of cells SL Paper 1
- Biology 1.2 Ultrastructure of cells HL Paper 1
- Biology 1.3 Membrane structure SL Paper 1
- Biology 1.3 Membrane structure HL Paper 1
- Biology 1.4 Membrane transport SL Paper 1
- Biology 1.4 Membrane transport HL Paper 1
- Biology 1.5 The origin of cells SL Paper 1
- Biology 1.6 Cell division SL Paper 1
Topic 2: Molecular biology
- 2.1 Molecules to metabolism SL Paper 1
- 2.1 Molecules to metabolism HL Paper 1
- 2.2 Water SL Paper 1
- 2.2 Water HL Paper 1
- 2.3 Carbohydrates and lipids SL Paper 1
- 2.3 Carbohydrates and lipids HL Paper 1
- 2.4 Proteins SL Paper 1
- 2.5 Enzymes SL Paper 1
- 2.5 Enzymes HL Paper 1
- 2.6 Structure of DNA and RNA SL Paper 1
- 2.6 Structure of DNA and RNA HL Paper 1
- 2.7 DNA replication, transcription and translation SL Paper 1
- 2.7 DNA replication, transcription and translation HL Paper 1
- 2.8 Cell respiration SL Paper 1
- 2.8 Cell respiration HL Paper 1
- 2.9 Photosynthesis SL Paper 1
Topic 3: Genetics
- 3.1 Genes SL Paper 1
- 3.1 Genes HL Paper 1
- 3.2 Chromosomes SL Paper 1
- 3.2 Chromosomes HL Paper 1
- 3.3 Meiosis SL Paper 1
- 3.3 Meiosis HL Paper 1
- 3.4 Inheritance Question Bank SL Paper 1
- 3.4 Inheritance Question Bank HL Paper 1
- 3.5 Genetic modification and biotechnology Question Bank SL Paper 1
- 3.5 Genetic modification and biotechnology Question Bank HL Paper 1
Topic 4: Ecology
- 4.1 Species, communities and ecosystems Question Bank SL Paper 1
- 4.1 Species, communities and ecosystems Question Bank HL Paper 1
- 4.2 Energy flow Question Bank SL Paper 1
- 4.2 Energy flow Question Bank HL Paper 1
- 4.3 Carbon cycling Question Bank SL Paper 1
- 4.3 Carbon cycling Question Bank HL Paper 1
- 4.4 Climate change Question Bank SL Paper 1
- 4.4 Climate change Question Bank HL Paper 1
Topic 5: Evolution and biodiversity
- 5.1 Evidence for evolution Question Bank SL Paper 1
- 5.1 Evidence for evolution Question Bank HL Paper 1
- 5.2 Natural selection Question Bank SL Paper 1
- 5.2 Natural selection Question Bank HL Paper 1
- 5.3 Classification of biodiversity Question Bank SL Paper 1
- 5.3 Classification of biodiversity Question Bank HL Paper 1
- 5.4 Cladistics Question Bank SL Paper 1
- 5.4 Cladistics Question Bank HL Paper 1
Topic 6: Human physiology
- 6.1 Digestion and absorption Question Bank SL Paper 1
- 6.1 Digestion and absorption Question Bank HL Paper 1
- 6.2 The blood system Question Bank SL Paper 1
- 6.2 The blood system Question Bank HL Paper 1
- 6.3 Defence against infectious disease Question Bank SL Paper 1
- 6.3 Defence against infectious disease Question Bank HL Paper 1
- 6.4 Gas exchange Question Bank SL Paper 1
- 6.4 Gas exchange Question Bank HL Paper 1
- 6.5 Neurons and synapses Question Bank SL Paper 1
- 6.5 Neurons and synapses Question Bank HL Paper 1
- 6.6 Hormones, homeostasis and reproduction Question Bank SL Paper 1
- 6.6 Hormones, homeostasis and reproduction Question Bank HL Paper 1
Topic 8: Metabolism, cell respiration and photosynthesis
Topic 10: Genetics and evolution
Paper 2
SL
- Time: 75 minutes (50 marks)
- Short – answer and extended – response questions (core)
- CALCULATOR ALLOWED
- Data booklet provided
- 40% weight
HL
- Time: 135 minutes (95 marks)
- Short – answer and extended – response questions (core & AHL)
- CALCULATOR ALLOWED
- Data booklet provided
- 36% weight
Topic 1: Cell biology
- Biology 1.1 Introduction to cells SL Paper 2
- Biology 1.1 Introduction to cells HL Paper 2
- Biology 1.2 Ultrastructure of cells SL Paper 2
- Biology 1.3 Membrane structure SL Paper 2
- Biology 1.3 Membrane structure HL Paper 2
- Biology 1.4 Membrane transport SL Paper 2
- Biology 1.4 Membrane transport HL Paper 2
- Biology 1.5 The origin of cells HL/SL Paper 2
- Biology 1.6 Cell division SL Paper 2
- Biology 1.6 Cell division HL Paper 2
Topic 2: Molecular biology
- 2.1 Molecules to metabolism SL Paper 2
- 2.1 Molecules to metabolism HL Paper 2
- 2.2 Water SL Paper 2
- 2.2 Water HL Paper 2
- 2.3 Carbohydrates and lipids SL Paper 2
- 2.3 Carbohydrates and lipids HL Paper 2
- 2.5 Enzymes SL Paper 2
- 2.5 Enzymes HL Paper 2
- 2.6 Structure of DNA and RNA SL Paper 2
- 2.6 Structure of DNA and RNA HL Paper 2
- 2.7 DNA replication, transcription and translation SL Paper 2
- 2.7 DNA replication, transcription and translation HL Paper 2
- 2.8 Cell respiration SL Paper 2
- 2.8 Cell respiration HL Paper 2
Topic 3: Genetics
- 3.1 Genes HL Paper 2
- 3.2 Chromosomes SL Paper 2
- 3.2 Chromosomes HL Paper 2
- 3.3 Meiosis Question Bank SL Paper 2
- 3.3 Meiosis Question Bank HL Paper 2
- 3.4 Inheritance Question Bank SL Paper 2
- 3.4 Inheritance Question Bank HL Paper 2
- 3.5 Genetic modification and biotechnology Question Bank SL Paper 2
- 3.5 Genetic modification and biotechnology Question Bank HL Paper 2
Topic 4: Ecology
- 4.1 Species, communities and ecosystems Question Bank SL Paper 2
- 4.1 Species, communities and ecosystems Question Bank HL Paper 2
- 4.2 Energy flow Question Bank SL Paper 2
- 4.2 Energy flow Question Bank HL Paper 2
- 4.3 Carbon cycling Question Bank SL Paper 2
- 4.3 Carbon cycling Question Bank HL Paper 2
- 4.4 Climate change Question Bank SL Paper 2
- 4.4 Climate change Question Bank HL Paper 2
Topic 5: Evolution and biodiversity
- 5.1 Evidence for evolution Question Bank SL Paper 2
- 5.1 Evidence for evolution Question Bank HL Paper 2
- 5.2 Natural selection Question Bank SL Paper 2
- 5.2 Natural selection Question Bank HL Paper 2
- 5.3 Classification of biodiversity Question Bank SL Paper 2
- 5.3 Classification of biodiversity Question Bank HL Paper 2
- 5.4 Cladistics Question Bank SL Paper 2
- 5.4 Cladistics Question Bank HL Paper 2
Topic 6: Human physiology
- 6.1 Digestion and absorption Question Bank HL Paper 2
- 6.2 The blood system Question Bank SL Paper 2
- 6.2 The blood system Question Bank HL Paper 2
- 6.3 Defence against infectious disease Question Bank SL Paper 2
- 6.3 Defence against infectious disease Question Bank HL Paper 2
- 6.4 Gas exchange Question Bank SL Paper 2
- 6.4 Gas exchange Question Bank HL Paper 2
- 6.5 Neurons and synapses Question Bank SL Paper 2
- 6.5 Neurons and synapses Question Bank HL Paper 2
- 6.6 Hormones, homeostasis and reproduction Question Bank SL Paper 2
- 6.6 Hormones, homeostasis and reproduction Question Bank HL Paper 2
Topic 8: Metabolism, cell respiration and photosynthesis
Topic 10: Genetics and evolution
Paper 3
SL
- Time: 60 minutes (35 marks)
- Section A: Data – based questions and short – answer questions on experimental work
- Section B: Short – answer and extended – response questions from one option
- CALCULATOR ALLOWED
- Data booklet provided
- 20% weight
HL
- Time: 75 minutes (45 marks)
- Section A: Data – based questions and short – answer questions on experimental work
- Section B: Short – answer and extended – response questions from one option
- CALCULATOR ALLOWED
- Data booklet provided
- 24% weight
THE EXPERIMENT is done on ONE OF THE 10 REQUIRED PRACTICALS!
Topic 2: Molecular biology
Topic 3: Genetics
- 3.1 Genes
- 3.2 Chromosomes
- 3.3 Meiosis
- 3.4 Inheritance
- 3.5 Genetic modification and biotechnology
Option A: Neurobiology and behaviour (Additional higher level topics)
Option B: Biotechnology and bioinformatics (Core topics)
Option B: Biotechnology and bioinformatics (Additional higher level topics)
- B.4 Medicine
- B.5 Bioinformatics
Option C: Ecology and conservation (Core topics)
- C.1 Species and communities
- C.2 Communities and ecosystems
- C.3 Impacts of humans on ecosystems
- C.4 Conservation of biodiversity
Option C: Ecology and conservation (Additional higher level topics)
- C.5 Population ecology
- C.6 Nitrogen and phosphorus cycles
Option D: Human physiology (Core topics)
- D.1 Human nutrition
- D.2 Digestion
- D.3 Functions of the liver
- D.4 The heart
Option D: Human physiology (Additional higher level topics)
- D.5 Hormones and metabolism
- D.6 Transport of respiratory gases
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