AP Biology Practice Test

60 questions90 minutesDetailed explanationsInstant scoring

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About the Real AP Biology Exam

The AP Biology exam is a college-level test administered by the College Board. Scoring a 3 or higher (on a 1-5 scale) can earn you college credit at thousands of universities, saving you time and tuition money. Over 3 million students take AP exams each year.

Our AP Biology Practice Test

Our AP Biology practice test contains 60 original multiple-choice questions matching the current AP Biology exam format. Questions are aligned to the College Board's course description and reflect the same topic weighting, difficulty distribution, and question styles found on the real exam.

What to Expect

You will answer 60 multiple-choice questions in approximately 90 minutes.
Questions cover all major units and topics in the AP Biology curriculum.
Difficulty ranges from straightforward recall to complex analysis and application.
After completion, you receive an estimated AP score on the 1-5 scale.
Every question includes a detailed explanation with subject-specific reasoning.
Your weak-area report shows which units and topics need the most review.

Try a Sample Question

AP Biology — Sample

A scientist observes that water has a remarkably high specific heat capacity, meaning it resists changes in temperature more than many other liquids. Which property of water's molecular structure is primarily responsible for this observation?

A Its density being lower as a solid than as a liquid.

B The strong covalent bonds within each water molecule.

C Its ability to form extensive hydrogen bonds with neighboring molecules.

D The nonpolar nature of its oxygen-hydrogen bonds.

Explanation. The correct answer is C. Water's high specific heat capacity, its ability to absorb or release large amounts of heat with only a slight change in its own temperature, is primarily due to the extensive hydrogen bonds that form between water molecules. When heat is absorbed, some of this energy is used to break these hydrogen bonds before water molecules can begin to move faster (increasing temperat

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