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IB Biology Questions



Self-marking revision quizzes

 

All of our questions are written by experienced IBDP teachers and closely match typical questions on recent papers.

New!! A.I. support being rolled out for corrections!
All SL quizzes are now A.I. ready

 

Micro (µ) IB

Mini-topic Quizzes: 10 questions in under 10 mins.

🔒 Unlock all of the IB quizzes with a premium account!
More info here

SL + HL Topics
A1.1 Water
A1.2 Nucleic Acids
A2.2 Cell Structure +B2.2 organelles
A3.1 Diversity of Organisms
A4.1 Evolution +D4.1 Natural Selection
A4.2 Conservation of Biodiversity
B1.1 Carbohydrates +lipids
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B1.2 Proteins
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B2.1 Cell Membranes
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B2.3 Cell Specialisation
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B3.1 Gas Exchange
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B3.2 Transport
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B4.2 Adaptation to Environment
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B4.3 Ecological Niches
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C1.1 Enzymes
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C1.2 Cell Respiration
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C1.3 Photosynthesis
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C2.2 Neural Signalling
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C3.1 Integration of Body Systems
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C3.2 Defence Against Disease
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C4.1 Populations + communities
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C4.2 Transfers of Energy + matter
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D1.1 DNA replication
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D1.2 Protein Synthesis
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D1.3 Mutations + Gene Editing
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D2.1 Cell and Nuclear Division
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D2.3 Water Potential
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D3.1 Reproduction
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D3.2 Inheritance
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D3.3 Homeostasis
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D4.2 Stability & Change
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D4.3 Climate Change
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HL Only Topics
A1.1 Water AHL
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A1.2 Nucleic Acids AHL
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A2.1 Origin of Cells
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A2.2 Cell Structure AHL
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A2.3 Viruses
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A3.1 Diversity of Organisms AHL
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A3.2 Classification & Cladistics
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A4.1 Evolution AHL +D4.1 Natural Selection
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B1.2 Proteins AHL
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B2.1 Cell Membranes AHL
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B2.3 Cell Specialisation AHL
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B3.1 Gas Exchange AHL
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B3.2 Transport AHL
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B3.3 Muscles & Motility
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C1.1 Enzymes AHL
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C1.2 Cell Respiration AHL
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C1.3 Photosynthesis AHL
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C2.1 Chemical Signalling
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C2.2 Neural Signalling AHL
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C3.1 Integration of Body Systems AHL
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D1.1 DNA Replication AHL
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D1.2 Protein Synthesis AHL
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D1.3 Mutations + Gene Editing AHL
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D2.1 Cell+Nuclear Division AHL
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D2.2 Gene Expression
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D2.3 Water Potential AHL
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D3.1 Reproduction AHL
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D3.2 Inheritance AHL
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D3.3 Homeostasis AHL
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D4.2/4.3 Stability & Climate AHL
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Complete for the revised 2025 syllabus!

All of these micro tests are quick and easy to complete - great for revision in small topic sections!