IB Biology Resources

IB Biology Question Bank, Videos, Notes & Flashcards

Standard Level (SL) & Higher Level (HL)SL & HL

Topic 1: Cells

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Exam Questions

1.1: Introduction to cells

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1.2: Ultrastructure of cells

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1.3: Membrane structure

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1.4: Membrane transport

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1.5: Origin of cells

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1.6: Cell division

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Topic 2: Molecules

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Exam Questions

2.1: Molecules to metabolism

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2.2: Water

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2.3: Carbohydrates & lipids

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2.4: Proteins

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2.5: Enzymes

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2.6: Structure of DNA & RNA

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2.7: Replication, transcription & translation

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2.8: Respiration

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2.9: Photosynthesis

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Topic 3: Genetics

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Exam Questions

3.1: Genes

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3.2: Chromosomes

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3.3: Meiosis

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3.4: Inheritance

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3.5: Genetic modification & biotechnology

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Topic 4: Ecology

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Exam Questions

4.1: Species, communities, & ecosystems

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4.2: Energy flow

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4.3: Carbon cycling

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4.4: Climate change

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Topic 5: Evolution & Biodiversity

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Exam Questions

5.1: Evidence for evolution

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5.2: Natural selection

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5.3: Classification of biodiversity

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5.4: Cladistics

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Topic 6: Human Physiology

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Exam Questions

6.1: Digestion & absorption

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6.2: Circulation & blood

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6.3: Defence against infectious disease

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6.4: Gas exchange

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6.5: Neurones & synapses

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6.6: Hormones, homeostasis & reproduction

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Topic 7: Nucleic Acids

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Exam Questions

7.1: DNA structure & replication

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7.2: Transcription & gene expression

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7.3: Translation

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Topic 8: Metabolism, Respiration & Photosynthesis

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Exam Questions

8.1: Metabolism

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8.2: Respiration

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8.3: Photosynthesis

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Topic 9: Plants

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Exam Questions

9.1: Transport in the Xylem

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9.2: Transport in the Phloem

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9.3: Growth in plants

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9.4: Reproduction in plants

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Topic 10: Genetics & Evolution

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Exam Questions

10.1: Meiosis

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10.2: Inheritance

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10.3: Gene pools & speciation

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Topic 11: Animal Physiology

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Notes & Flashcards
Exam Questions

11.1: Antibody production & vaccination

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11.2: Movement & muscle contraction

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11.3: The Kidneys & osmoregulation

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11.4: Sexual reproduction

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