AP® Biology Practice Test

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Unit 1: Chemistry of Life (39) 3
  • The structure and chemical properties of water 10 1
  • The makeup and properties of macromolecules 18 2
  • The structure of DNA and RNA 11 0
Unit 2: Cell Structure and Function (75) 10
  • Cellular components and functions of those components 27 6
  • Cell interaction with its environment 15 3
  • The cell membrane structure and function 13 0
  • Cell regulatory mechanisms like osmosis and selective permeability 10 1
  • Cellular compartmentalization 10 0
Unit 3: Cellular Energetics (79) 4
  • The structure and function of enzymes 12 1
  • The role of energy in living systems 16 1
  • The processes of photosynthesis 19 2
  • The processes of cellular respiration 21 0
  • Molecular diversity and cellular response to environmental changes 11 0
Unit 4: Cell Communication and Cell Cycle (51) 10
  • The mechanisms of cell communication 10 2
  • Signal transduction 10 1
  • Cellular responses and feedback mechanisms 16 5
  • The events in a cell cycle 15 2
Unit 5: Heredity (58) 13
  • The process and function of meiosis 13 3
  • The concepts genetic diversity 11 1
  • Mendel’s laws and probability 11 2
  • Non-mendelian Inheritance 10 1
  • Factors affecting inheritance and gene expression 13 6
Unit 6: Gene Expression and Regulation (62) 17
  • The roles and functions of DNA and RNA 13 3
  • The mechanisms of gene expression 17 7
  • How genotype affects phenotype 10 2
  • Mutations-genetic diversity-and natural selection 11 3
  • Genetic engineering and biotechnology 11 2
Unit 7: Natural Selection (82) 13
  • Evidential support for evolution and common ancestry 15 2
  • The mechanisms of natural selection and speciation 22 4
  • Environmental and human-caused factors in evolution 11 5
  • Charting species ancestry through phylogenetic trees and cladograms 14 1
  • Extinction 10 0
  • Models of the origin of life on Earth 10 1
Unit 8: Ecology (74) 10
  • Communication and responses to environmental changes 11 3
  • Energy flow within and across ecosystems 18 1
  • Factors in the growth-density-and success of populations 16 1
  • Factors in community and ecosystem dynamics 18 4
  • Invasive species-human interaction-and environmental changes 11 1
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Previous Year Free Response Questions (0) 32
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