AP Biology Flashcards & Study Guide
Molecules to ecosystems — cell structure, energetics, heredity, gene expression, evolution, and ecology.
This is the full AP Biology deck that ships inside Blitz: 278 cards across 8 units, every one written from the College Board Course and Exam Description rather than from a generic textbook. A separate key-term reference defines the 321 AP Biology terms the CED expects you to know cold.
Each unit below has its own page with sample questions and answers you can work through right here — no account, no download. Start with the unit you are shakiest on, or work straight down the list.
AP Biology units
How to use this AP Biology study guide
Answer before you read
Every unit page opens with real questions. Say your answer out loud first, then check it. Recognizing the right answer on a page feels like knowing it and is not the same thing.
Get the vocabulary down first
Most lost AP Biology points come from a term you half-remembered. The key-term reference is the fastest way to close that gap, and it is free to read in full.
Then space it out
Cards you miss come back sooner, cards you nail come back later. That is what the app does with the rest of this deck once you have worked through the previews.
AP Biology FAQ
How many AP Biology flashcards does Blitz have?
278 cards across 8 units, written from the College Board Course and Exam Description for AP Biology. The key-term reference adds another 321 defined terms.
Are these AP Biology flashcards free?
Unit 1 is free on every AP course, and every unit page on this site shows sample AP Biology questions and answers for free. The rest of the deck unlocks in the app.
What units does AP Biology cover?
AP Biology is organized into 8 units: Unit 1 (Chemistry of Life), Unit 2 (Cell Structure and Function), Unit 3 (Cellular Energetics), Unit 4 (Cell Communication and Cell Cycle), Unit 5 (Heredity), Unit 6 (Gene Expression and Regulation), Unit 7 (Natural Selection), Unit 8 (Ecology).
How should I study AP Biology?
Test yourself before you review. Pull up a unit, answer the sample questions from memory, and only then read the answer — retrieval beats re-reading. Learn the unit's key terms first so the questions have something to hook onto, then let spaced repetition in the app bring back whatever you missed, a little further apart each time you get it right.
Other AP study guides
Blitz covers 11 AP courses. Same deck, same free unit, same key-term reference for each:
Practice all AP Biology cards on Blitz
Free Unit 1 on every AP course. Smart spaced repetition. No subscription.