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AP®︎ Biology

We're actively working on this course!

Throughout the summer and into the next school year, we'll be adding even more videos, practice, and exam-aligned materials to this course.
Read more about what to expect here

Chemistry of life

Structure of water and hydrogen bonding: Chemistry of lifeElements of life: Chemistry of lifeIntroduction to biological macromolecules: Chemistry of life
Properties, structure, and function of biological macromolecules: Chemistry of lifeNucleic acids: Chemistry of life

Cell structure and function

Cell structures and their functions: Cell structure and functionCell size: Cell structure and functionPlasma membranes: Cell structure and functionMembrane permeability : Cell structure and function
Membrane transport: Cell structure and functionFacilitated diffusion: Cell structure and functionMechanisms of transport: tonicity and osmoregulation: Cell structure and functionCell compartmentalization and its origins: Cell structure and function

Cellular energetics

Enzyme structure and catalysis: Cellular energeticsEnvironmental impacts on enzyme function: Cellular energeticsCellular energy: Cellular energetics
Photosynthesis: Cellular energeticsCellular respiration: Cellular energeticsMolecular fitness: Cellular energetics

Cell communication and cell cycle

Cell communication: Cell communication and cell cycleSignal transduction: Cell communication and cell cycleChanges in signal transduction pathways: Cell communication and cell cycle
Feedback: Cell communication and cell cycleCell cycle: Cell communication and cell cycleRegulation of cell cycle: Cell communication and cell cycle

Heredity

Meiosis and genetic diversity: HeredityMendelian genetics: HeredityNon-Mendelian genetics: Heredity
Environmental effects on phenotype: HeredityChromosomal inheritance: Heredity

Gene expression and regulation

DNA and RNA structure: Gene expression and regulationReplication: Gene expression and regulationTranscription and RNA processing: Gene expression and regulation
Translation: Gene expression and regulationRegulation of gene expression and cell specialization: Gene expression and regulationMutations: Gene expression and regulationBiotechnology: Gene expression and regulation

Natural selection

Natural selection: Natural selectionArtificial selection: Natural selectionPopulation genetics: Natural selectionHardy-Weinberg equilibrium: Natural selectionEvidence for evolution: Natural selection
Common ancestry and continuing evolution: Natural selectionPhylogeny: Natural selectionSpeciation: Natural selectionExtinction: Natural selectionVariations in populations: Natural selectionOrigins of life on earth: Natural selection

Ecology

Responses to the environment: EcologyEnergy flow through ecosystems: EcologyPopulation ecology: Ecology
Community ecology: EcologyBiodiversity: EcologyDisruptions to ecosystems: Ecology

Worked examples of AP®︎ Biology free response questions

Worked examples - 2015: Worked examples of AP®︎ Biology free response questions

AP®︎ Biology standards mappings

See how our course content aligns with AP®︎ Biology standards: AP®︎ Biology standards mappings
Community questions