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AP Biology flashcards

3 decks · 180 cards · built into Willys · free samples below

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Written against: College Board AP Biology Course and Exam Description (eight units). Updated 2026-10-10.

What's in it

Every deck follows the course outline, with tags you can study or suspend topic by topic. Open a deck to study its free sample right here.

Learn · 2 decks · 120 cards

Concepts, mechanisms and the questions a course or exam asks about them.

Chemistry of Life, Cells & Energetics Units 1–4 of the AP Biology course: water and macromolecules, enzymes, organelles, membranes and water potential, respiration and photosynthesis, cell signaling and cell-cycle control, with applied predict-and-explain prompts in the style of the exam. 10 free · 60 cards in the app Heredity, Gene Expression, Evolution & Ecology Units 5–8 of the AP Biology course: meiosis and inheritance patterns, chi-square, DNA replication and gene expression, operons and epigenetics, biotechnology, natural selection and Hardy–Weinberg, speciation and tree reading, population and community ecology, energy flow and nutrient cycles. 10 free · 60 cards in the app

Practice · 1 deck · 60 questions

Multiple-choice practice questions, one best answer each, with the reasoning.

Practice Questions Multiple-choice practice questions, one best answer each, on all eight AP Biology units, with water potential, chi-square, Hardy–Weinberg and surface-area-to-volume calculations. 6 free · 60 questions in the app

Study guide

Topics covered

The decks follow the order of the course outline. Numbers are cards per topic.

  • Chemistry of Life 16
    • Macromolecules 12
    • Water 4
  • Cell Structure 28
    • Cell Size 5
    • Membranes and Transport 8
    • Organelles 8
    • Water Potential 7
  • Cellular Energetics 30
    • Enzymes 9
    • Photosynthesis 10
    • Respiration 11
  • Cell Communication 7
  • Cell Cycle 7
  • Heredity 21
    • Chromosomes and Chi-Square 8
    • Meiosis 6
    • Mendelian Genetics 7
  • Gene Expression 26
    • Biotechnology 6
    • DNA Structure and Replication 5
    • Regulation and Mutations 9
    • Transcription and Translation 6
  • Natural Selection 24
    • Hardy–Weinberg 7
    • Selection and Evidence 8
    • Speciation and Phylogeny 9
  • Ecology 21
    • Communities 5
    • Energy and Cycles 7
    • Populations 6
    • Succession and Biodiversity 3

A study plan

  • 7 new cards a day covers everything in a month, leaving the last weeks for review.
  • 5 new cards a day covers everything in two months, leaving the last weeks for review.

Willys schedules reviews for you (FSRS spaced repetition), so the daily number above is only for new cards; reviews of what you have learned come back on their own. Study a topic's cards right after you meet it in class, suspend topics you have not reached yet, and use the app's quiz mode in the final two weeks.

How to get these decks

  1. Install Willys on your iPhone, iPad or Mac — App Store. 14-day free trial, then $14.99 a year.
  2. In Willys, tap Exam Library at the top of your Decks (or Browse Exam Library… under the + button), find the exam on its shelf or by search, tick it and tap Add.
  3. Study. The exam comes in as its own collapsible folder, every card scheduled by FSRS spaced repetition. Nothing you already have is changed.

Every deck is built into Willys

All 3 AP Biology decks (180 cards), with FSRS spaced repetition, quizzes and mock tests, on iPhone, iPad and Mac. 14-day free trial, then $14.99 a year.

Get the app

In Willys, tap Exam Library at the top of your Decks (or Browse Exam Library… under the + button), find the exam on its shelf or by search, tick it and tap Add.

About these cards

Review status: Second-reader reviewed, with corrections applied.

Checked against:

  • OpenStax Biology 2e, consulted as a reference; no text copied.
  • Checked against Campbell Biology, 12th ed. (reference only; no text copied).
  • Topic coverage follows the published AP Biology course units in the Course and Exam Description effective Fall 2025 (the AP name is used nominatively; no exam or course material reproduced).

These are independent study notes written for Willys. They are not official exam material, may contain mistakes, and are no substitute for your course, your teacher or the exam owner's own publications. Found an error? Tell us — corrections ship as a new version of the deck.

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