Laboratory investigations are a major component of AP Biology. They’re not just classroom activities — they form the foundation for many FRQ questions and experimental design problems on the exam.
In this guide, we’ll cover all 13 AP Biology labs, the skills you need to master, and how to apply them to both the multiple-choice and free-response sections.
1. Why Labs Matter on the AP Biology Exam
- Labs reinforce core concepts in the AP Biology Curriculum Framework.
- AP exam questions often reference lab setups, data tables, or graphs.
- Mastery of lab skills helps with experimental design FRQs — a high-scoring opportunity.
2. The 13 AP Biology Labs – Overview
Here are the official College Board–endorsed labs you should know:
- Artificial Selection – Investigating changes in a population over time
- Mathematical Modeling: Hardy–Weinberg – Applying population genetics formulas
- Comparing DNA Sequences – Using bioinformatics to explore evolutionary relationships
- Diffusion and Osmosis – Modeling membrane transport
- Photosynthesis – Measuring the rate using floating leaf disks or sensors
- Cellular Respiration – Measuring oxygen consumption or CO₂ production
- Mitosis and Meiosis – Observing and calculating phases
- Bacterial Transformation – Introducing foreign DNA into bacteria
- Restriction Enzyme Analysis – Using gel electrophoresis to visualize DNA fragments
- Energy Dynamics – Measuring biomass and energy flow in ecosystems
- – Measuring water loss in plants under different conditions
