AP Biology: Practice Questions, Units, and Exam Format
Chemistry of life, cells, energetics, genetics, evolution, and ecology. See exactly what is on the exam, unit by unit, and practise it with a tutor that adapts to you.
Exam format
| Section | Questions | Time | Share of score |
|---|---|---|---|
| Section I: Multiple Choice | 60 | 1 hr 30 min | 50% |
| Section II: Free Response | 6 | 1 hr 30 min | 50% |
Units and exam weights
| Unit | Exam weight | Topics covered |
|---|---|---|
| Chemistry of Life | 8 to 11% | Structure of water and hydrogen bonding, Elements of life, Introduction to macromolecules, Carbohydrates, Lipids, Nucleic acids |
| Cells | 10 to 13% | Cell structure and function, Cell size, Plasma membrane, Membrane permeability, Membrane transport, Facilitated diffusion |
| Cellular Energetics | 12 to 16% | Enzymes, Environmental impacts on enzyme function, Cellular energy, Photosynthesis, Cellular respiration |
| Cell Communication and Cell Cycle | 10 to 15% | Cell communication, Introduction to signal transduction, Signal transduction pathways, Feedback, Cell cycle, Regulation of cell cycle |
| Heredity | 8 to 11% | Meiosis, Meiosis and genetic diversity, Mendelian genetics, Non-Mendelian genetics, Environmental effects on phenotype |
| Gene Expression and Regulation | 12 to 16% | DNA and RNA structure, DNA replication, Transcription and RNA processing, Translation, Regulation of gene expression, Gene expression and cell specialization |
| Natural Selection | 13 to 20% | Introduction to natural selection, Natural selection, Artificial selection, Population genetics, Hardy-Weinberg equilibrium, Evidence of evolution |
| Ecology | 10 to 15% | Responses to the environment, Energy flow through ecosystems, Population ecology, Effect of density on populations, Community ecology, Biodiversity |
How Kalyta teaches AP Biology
Practice that adapts to you, an explanation for every answer, and a full rehearsal before the real thing. You spend your time on the units that move your score instead of the ones you have already got.
- Adaptive practice. Questions are picked around your current level, so you are always working just past what you can already do.
- Every answer explained. See why the right answer is right and why each other choice is wrong, with figures and step by step reasoning.
- An AI tutor you can steer. Ask why something works, ask for another example, or tell it to slow down and teach the idea from the start.
- Full exam rehearsals. Sit the real format under real timing and get a predicted score, so test day feels like something you have already done.
- Progress you can see. Watch your readiness climb unit by unit, and know what is solid before you walk in.
One subscription covers every course in the AP app, so you can study more than one without paying twice.
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