The AP Biology exam is one of the most content-heavy AP tests, requiring mastery of complex biological concepts, data analysis, and application of scientific practices. A strong review plan can mean the difference between a passing score and a 5.
This guide covers:
- AP Bio exam structure
- How the exam is scored
- Key topics to review
- Study strategies and test-day tips
- Common mistakes to avoid
AP Bio Exam Structure
The AP Biology exam is 3 hours long and divided into two main sections:
Section I – Multiple Choice and Grid-In Questions
- 60 multiple-choice questions
- 6 grid-in questions (numeric answers)
- 90 minutes total
- Worth 50% of the overall score
Section II – Free Response Questions (FRQ)
- 2 long free response questions
- 4 short free response questions
- 90 minutes total
- Worth 50% of the overall score
How the AP Bio Exam Is Scored
The College Board uses weighted scoring to combine your Section I and Section II scores.
- Section I: 50% of the total score
- Section II: 50% of the total score
Final scores are converted to the 1–5 AP scale:
- 5 = Extremely Well Qualified
- 4 = Well Qualified
- 3 = Qualified
- 2 = Possibly Qualified
- 1 = No Recommendation
