AP® Biology Practice Test

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Unit 1: Chemistry of Life (30) 0
  • The structure and chemical properties of water 10 0
  • The makeup and properties of macromolecules 10 0
  • The structure of DNA and RNA 10 0
Unit 2: Cell Structure and Function (50) 0
  • Cellular components and functions of those components 10 0
  • Cell interaction with its environment 10 0
  • The cell membrane structure and function 10 0
  • Cell regulatory mechanisms like osmosis and selective permeability 10 0
  • Cellular compartmentalization 10 0
Unit 3: Cellular Energetics (50) 0
  • The structure and function of enzymes 10 0
  • The role of energy in living systems 10 0
  • The processes of photosynthesis 10 0
  • The processes of cellular respiration 10 0
  • Molecular diversity and cellular response to environmental changes 10 0
Unit 4: Cell Communication and Cell Cycle (40) 0
  • The mechanisms of cell communication 10 0
  • Signal transduction 10 0
  • Cellular responses and feedback mechanisms 10 0
  • The events in a cell cycle 10 0
Unit 5: Heredity (50) 0
  • The process and function of meiosis 10 0
  • The concepts genetic diversity 10 0
  • Mendel’s laws and probability 10 0
  • Non-mendelian Inheritance 10 0
  • Factors affecting inheritance and gene expression 10 0
Unit 6: Gene Expression and Regulation (50) 0
  • The roles and functions of DNA and RNA 10 0
  • The mechanisms of gene expression 10 0
  • How genotype affects phenotype 10 0
  • Mutations-genetic diversity-and natural selection 10 0
  • Genetic engineering and biotechnology 10 0
Unit 7: Natural Selection (60) 0
  • Evidential support for evolution and common ancestry 10 0
  • The mechanisms of natural selection and speciation 10 0
  • Environmental and human-caused factors in evolution 10 0
  • Charting species ancestry through phylogenetic trees and cladograms 10 0
  • Extinction 10 0
  • Models of the origin of life on Earth 10 0
Unit 8: Ecology (50) 0
  • Communication and responses to environmental changes 10 0
  • Energy flow within and across ecosystems 10 0
  • Factors in the growth-density-and success of populations 10 0
  • Factors in community and ecosystem dynamics 10 0
  • Invasive species-human interaction-and environmental changes 10 0
Practice by Year
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Previous Year Free Response Questions (52) 0
  • AP Biology 2024 6 0
  • AP Biology 2023 6 0
  • AP Biology 2022 6 0
  • AP Biology 2021 6 0
  • AP Biology 2019 28 0