AP Biology

Exam Breakdown

Section I: Multiple Choice | 60 Questions | 1 Hour and 30 Minutes | 50% of Exam Score


Section II: Free Response | 6 Questions | 1 Hour and 30 Minutes | 50% of Exam Score

2 Long Questions and 4 Short Questions


*Four Function, Scientific, and/or Graphing Calculator Allowed Throughout Exam

Units

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 | 13–20% 

Unit 8: Ecology | 10–15%

Resources