AP Biology (often called AP Bio) is one of the most challenging and rewarding AP science courses. With a heavy mix of memorization, data analysis, and experimental design, it prepares you for college-level biology while giving you a chance to earn college credit in high school.
In this guide, we’ll cover:
- What AP Bio is and who should take it
- Exam format and unit breakdown
- Scoring and percentage weight per section
- Study tips for mastering the course
- How to use your AP Bio score for college credit with RevisionDojo
What Is AP Biology?
AP Biology is an advanced placement course offered by the College Board. It covers introductory college-level biology topics, including:
- Cell structure and function
- Genetics and heredity
- Evolution
- Ecology
- Biochemistry
- Energy flow in living systems
It’s ideal for students interested in STEM majors, pre-med tracks, or simply earning science credits early.
AP Bio Exam Format
Section I — Multiple Choice (50% of score)
- 60 MCQs
- Includes both individual and set-based questions
- Tests understanding of scientific concepts, graphs, and data
Section II — Free Response (50% of score)
- 2 long FRQs
- 4 short FRQs
- Requires experimental design, data analysis, and explanation of biological processes
AP Bio Units & Weighting
The AP Bio course is split into 8 units, each with a different exam weighting:
- Unit 1: Chemistry of Life — 8–11%
- Unit 2: Cell Structure and Function — 10–13%
- Unit 3: Cellular Energetics — 12–16%
- Unit 4: Cell Communication and Cell Cycle — 10–15%
- Unit 5: Heredity — 8–11%
- Unit 6: Gene Expression and Regulation — 12–16%
- Unit 7: Natural Selection — 11–15%
- Unit 8: Ecology — 10–15%
Scoring in AP Bio
Your score is determined by:
- MCQ raw score → scaled to 50%
- FRQ raw score → scaled to 50%
- Composite score → matched to College Board’s 1–5 scale
Top Study Tips for AP Bio
- Use visual aids: Diagrams, concept maps, and flowcharts help you memorize processes.
- Practice data analysis: Many FRQs require interpreting graphs and experimental results.
- Master lab skills: Be able to explain experimental setups and expected outcomes.
- Review past exams: The best way to understand question style is to see real examples.
- Space out your studying: Daily review beats cramming.
How RevisionDojo Helps AP Bio Students
RevisionDojo’s AP Biology tools include:
- AP Bio Score Calculator to predict your score before July
- Exam strategies tailored to the FRQ section
- University Match Quiz to see which schools give credit for AP Bio
- Universities Directory to check credit policies instantly
FAQ – AP Bio
1. Is AP Bio harder than AP Chemistry?
It depends — AP Bio requires more memorization, while AP Chem is more calculation-heavy.
2. Can I take AP Bio without prior biology?
It’s possible, but taking high school biology first is recommended.
3. How much math is in AP Bio?
Basic statistics, graphing, and data analysis are included.
4. What’s the AP Bio pass rate?
It varies yearly, usually around 60–65% scoring 3 or above.
5. Do all colleges give credit for AP Bio?
No — credit policies vary, so check before applying.
Turn Your AP Bio Score Into College Credit
Don’t just take AP Bio — use your score to get ahead in college.
🎯 Take the University Match Quiz to find schools that match your AP Bio score.
🌍 Browse the Universities Directory to see credit and placement policies instantly.
