Exam at a glance
| Section | Format | Questions | Weighting | Timing |
|---|---|---|---|---|
| I | Multiple choice | 60 | 50% | 90 min |
| II | Free response | 6 | 50% | 90 min |
Exam length: 3 hours. A four-function, scientific, or graphing calculator is allowed on both sections.
Units and exam weighting
- 1. Chemistry of Life
- 8–11%
- 2. Cells
- 10–13%
- 3. Cellular Energetics
- 12–16%
- 4. Cell Communication and Cell Cycle
- 10–15%
- 5. Heredity
- 8–11%
- 6. Gene Expression and Regulation
- 12–16%
- 7. Natural Selection
- 13–20%
- 8. Ecology
- 10–15%
Free-response question types
- Q1 — Interpreting and Evaluating Experimental Results (9 pts)
- Q2 — Interpreting and Evaluating Experimental Results with Graphing (9 pts)
- Q3 — Scientific Investigation (4 pts)
- Q4 — Conceptual Analysis (4 pts)
- Q5 — Analyze Model or Visual Representation of a Biological Concept or Process (4 pts)
- Q6 — Analyze Data (4 pts)
Science practices
- Concept Explanation — Explaining biological concepts, processes and models.
- Visual Representations — Analyzing diagrams and visual models.
- Questions and Methods — Identifying testable questions and experimental procedures.
- Representing and Describing Data — Reading and describing tables and graphs.
- Statistical Tests and Data Analysis — Calculations, confidence intervals and chi-square tests.
- Argumentation — Making and justifying claims with evidence.
Exam tips
- 1Each of the four short-answer FRQs (3–6) targets a different ‘big idea,’ so review across all eight units rather than concentrating on a few.
- 2For graphing questions, label axes and units correctly first — this is worth dedicated points before any interpretation is credited.
- 3Practice the ‘describe → explain → predict → justify’ pattern common to FRQ parts A–D; each verb expects a different depth of response.
- 4Use precise biology vocabulary — vague phrasing is a common way to lose points even when the underlying idea is right.
Subject guides · Economics and Psychology
AP Social Sciences
Macroeconomics, Microeconomics and Psychology all weight multiple choice at around two thirds of the exam. The two economics exams share a format, a set of skill categories and most of their exam tips.
Tap a subject to see its exam structure, unit weighting and exam tips.
Exam at a glance
Exam length: 2 hours 10 minutes. *Section II includes a 10-minute reading period. A four-function calculator is allowed on both sections.
Units and exam weighting
Big ideas
Skill categories
Exam tips
Exam at a glance
Exam length: 2 hours 10 minutes. *Section II includes a 10-minute reading period. A four-function calculator is allowed on both sections.
Units and exam weighting
Big ideas
Skill categories
Exam tips
Exam at a glance
Exam length: 2 hours 40 minutes.
Units and exam weighting
All five units carry the same 15–25% range, so no unit can safely be skipped.
Free-response questions
Practices
All four practices — including Argumentation, which is free-response only — are assessed across the two free-response questions.
Exam tips