A breakdown of the AP Biology exam:

1. Molecules and Cells (25%)
   
   
   1. Chemistry of Life (7%)
      1. Water
      2. Organic molecules in organisms
      3. Free energy changes
      4. Enzymes
   2. Cells (10%)
      1. Prokaryotic and eukaryotic cells
      2. Membranes
      3. Subcellular organization
      4. Cell cycle and its regulation
   3. Cellular Energetics (8%)
      1. Coupled reactions
      2. Fermentation and Cellular Respiration
      3. Photosynthesis
   
   
2. Heredity and Evolution (25%)
   
   
   1. Heredity (8%)
      1. Meiosis and gametogenesis
      2. Eukaryotic chromosomes
      3. Inheritance patterns
   2. Molecular Genetics (9%)
      1. RNA and DNA structure and function
      2. Gene regulation
      3. Mutation
      4. Viral structure and replication
      5. Nucleic acid technology and applications
   3. Evolutionary Biology (8%)
      1. Early evolution of life
      2. Evidence for evolution
      3. Mechanisms of evolution
   
   
3. Organisms and Populations (50%)
   
   
   1. Diversity of Organisms (8%)
      1. Evolutionary patterns
      2. Survey of the diversity of life
      3. Phylogenetic classification
      4. Evolutionary relationships
   2. Structure and Function of Plants and Animals (32%)
      1. Reproduction, growth, and development
      2. Structural, physiological, and behavioral adaptations
      3. Response to the environment
   3. Ecology (10%)
      1. Population dynamics
      2. Communities and ecosystems
      3. Global issues