AP Biology Practice Test

AP Biology Practice Test

This free, 106-question AP Biology practice test covers all 8 AP Bio units. It’ll help you diagnose exactly where you stand. You’ll get instant feedback on every question, and you’ll learn as you go.

As of June, 2026, we can’t save your progress (we’re working on it). We suggest you do ten questions in a row in a short practice session: you can increase or decrease that number through the pulldown menu that says “Max to practice in this session.” When you finish your session, you’ll get a report that shows your strengths and weaknesses, and what to study next.

[qwiz use_dataset=”AP Bio Public Assessement” style=”width: 600px !important; min-height: 450px !important;” repeat_incorrect=”true” summary=”true” xqrecord_id=”sciencemusicvideosMeister1961-AP Bio Practice Assessment” questions_to_show=”10″ display_name=”AP Bio Diagnostic Self-Assessment”]
[h]AP Bio Practice Test (106 question self-assessment)

[i]

[/qwiz]

What this AP Biology diagnostic practice test covers

The test spans all 8 units of the AP Biology course, aligned to the current College Board Course and Exam Description. Every unit is represented, from biochemistry through ecology:

  • Unit 1 — Chemistry of Life
  • Unit 2 — Cell Structure and Function
  • Unit 3 — Cellular Energetics
  • Unit 4 — Cell Communication, the Cell Cycle, Feedback
  • Unit 5 — Heredity
  • Unit 6 — Gene Expression and Regulation
  • Unit 7 — Evolution
  • Unit 8 — Ecology

AP Biology practice test FAQ

Is the AP Biology practice test really free?

Yes — completely free, with no credit card required. We’ll ask you to register with an email address so that you can save your work and get to the end (it has 106 questions, and you mght need multiple sessions to get to the end).

How many questions is it?

106 questions across all 8 units — a full-length diagnostic, so give yourself time to work through it. The feedback on each question is there to help you learn as you go, not just to score you.

Is it aligned to the current AP Biology exam?

Yes. The questions follow the College Board’s most recent AP Biology Course and Exam Description, including newer topics such as pleiotropy and biogeochemical cycles.

What do I get at the end?

A report showing your strongest units, the topics costing you the most points, and which areas to study next — so you can focus your review where it counts instead of guessing.

After your results: what to study next

Once you see where you stand, use these resources to close the gaps: