Unit guidesAP Biology

AP Biology: every unit, every topic

8 units · 60 multiple-choice questions (50% of your score) · 6 free-response questions (50%) · exam Monday, May 3, 2027, 184 days away

Unit 1
Chemistry of Life
7 topics
8–11%of the exam
Unit 2
Cells
10 topics
10–13%of the exam
Unit 3
Cellular Energetics
5 topics
12–16%of the exam
Unit 4
Cell Communication and Cell Cycle
6 topics
10–15%of the exam
Unit 5
Heredity
5 topics
8–11%of the exam
Unit 6
Gene Expression and Regulation
8 topics
12–16%of the exam
Unit 7
Natural Selection
12 topics
13–20%of the exam
Unit 8
Ecology
7 topics
10–15%of the exam
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