- IB DP Biology 2025 SL- IB Style Practice Questions with Answer-Topic Wise-Paper 1
- IB DP Biology 2025 HL- IB Style Practice Questions with Answer-Topic Wise-Paper 1
- IB DP Biology 2025 SL- IB Style Practice Questions with Answer-Topic Wise-Paper 2
- IB DP Biology 2025 HL- IB Style Practice Questions with Answer-Topic Wise-Paper 2
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 Topic
- Topic 1.1 Introduction to cells SL Paper 1
- Topic 1.1 Introduction to cells HL Paper 1
- Topic 1.2 Ultrastructure of cells SL Paper 1
- Topic 1.2 Ultrastructure of cells HL Paper 1
- Topic 1.3 Membrane structure SL Paper 1
- Topic 1.3 Membrane structure HL Paper 1
- Topic 1.4 Membrane transport SL Paper 1
- Topic 1.4 Membrane transport HL Paper 1
- Topic 1.5 The origin of cells SL Paper 1
- Topic 1.5 The origin of cells HL Paper 1
- Topic 1.6 Cell division SL Paper 1
- Topic 1.6 Cell division HL 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
- 2.4 Proteins HL 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
- 2.9 Photosynthesis HL 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
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 Topic
- Topic 0.0 Working with data SL Paper 2
- Topic 0.0 Working with data HL Paper 2
- Topic 1.1 Introduction to cells SL Paper 2
- Topic 1.1 Introduction to cells HL Paper 2
- Topic 1.2 Ultrastructure of cells SL Paper 2
- Topic 1.2 Ultrastructure of cells HL Paper 2
- Topic 1.3 Membrane structure SL Paper 2
- Topic 1.3 Membrane structure HL Paper 2
- Topic 1.4 Membrane transport SL Paper 2
- Topic 1.4 Membrane transport HL Paper 2
- Topic 1.5 The origin of cells SL Paper 2
- Topic 1.5 The origin of cells HL Paper 2
- Topic 1.6 Cell division SL Paper 2
- Topic 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
- 2.4 Proteins SL Paper 2
- 2.4 Proteins 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
- 2.9 Photosynthesis SL Paper 2
- 2.9 Photosynthesis HL Paper 2
Topic 3: Genetics
- 3.1 Genes SL Paper 2
- 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 SL Paper 2
- 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
Related Links
Here are some steps you can follow to prepare effectively:
Study the syllabus: Make sure you understand the topics that are covered in the IB DP Biology syllabus. This will give you a clear idea of what to expect on the exams.
Review class notes and textbooks: Regularly review your class notes and textbooks to reinforce your understanding of the material.
Practice, practice, practice: Practice solving Biology problems as much as possible. Try to work through as many practice questions and Mock tests as you can find here at iitianacademy.com . This will help you get a feel for the types of questions you can expect on the exams and build your problem-solving skills.
Seek help when needed: If you’re struggling with a particular concept, don’t hesitate to ask your teacher or a tutor for help.
Stay organized: Make sure to keep track of important formulas, equations, and concepts so you can easily reference them when you need to.
Stay up-to-date on current events in Biology : Being knowledgeable about current developments in Biology can help you better understand the applications of the concepts you are learning.
This Practice Questions are for IBDP Biology for assessments in May 2024 and November 2024.
For IB DP Biology Assessment from May 2025 onwards please follow this link
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IB DP Biology 2025 Exam Style Questions with Solutions For HL and SL Syllabus are arranged by New Syllabus Topics
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IB DP Biology 2025 Revision Resources has flashcards with core concepts , Key terms added with diagram and visuals to ace IB Biology exam.