AP Biology Flashcards

This flashcard collection mirrors the eight units of the College Board's AP Biology curriculum: Chemistry of Life, Cell Structure and Function, Cellular Energetics, Cell Communication and Cell Cycle, Heredity, Gene Expression and Regulation, Natural Selection, and Ecology. Each unit gets dedicated cards for the key vocabulary, processes, and high-yield distinctions students miss most often on the exam.

The free preview above shows five sample cards covering different units so you can see the format. Inside the Sticky app you get the full deck, generated and scheduled with spaced repetition so each card returns just before you would forget it.

AP Biology rewards depth over breadth. The students who pull a 5 are not the ones who memorize the most terms. They are the ones who can connect concepts across units. Here is the study sequence that works for most students:

1. Start 8 to 12 weeks before exam day. Spaced repetition only works when the intervals have time to grow. Cramming the week before defeats the entire system.
2. Add 20 to 30 new cards per study session. Reviewing too many cards at once leads to review burnout and worse retention.
3. Review for 20 minutes daily, not 2 hours weekly. The spacing effect requires distributed practice. Short, frequent sessions outperform long, infrequent ones.
4. Pair cards with diagrams. AP Biology loves visual reasoning. After reviewing a card on photosynthesis, sketch the light-dependent reactions from memory.
5. Use cards for vocab, free response questions for application. Flashcards build the foundation. Released FRQs from previous exams build the application layer.

Not every concept appears equally often on the exam. Based on College Board score reports and the Course and Exam Description, these topics earn disproportionate attention:

• Cellular respiration and photosynthesis: including the difference between substrate-level and oxidative phosphorylation
• Mendelian and non-Mendelian genetics: Punnett squares, codominance, sex-linked traits, and pedigree analysis
• Cell signaling pathways: reception, transduction, response, and feedback regulation
• Hardy-Weinberg equilibrium: both the conceptual conditions and the algebra (p² + 2pq + q² = 1)
• Population ecology: exponential vs logistic growth, carrying capacity, survivorship curves
• Evolution mechanisms: genetic drift, gene flow, natural selection, speciation

For a unit-by-unit breakdown of every major concept, see our AP Biology Review Guide.

The science is settled on this one. A meta-analysis of 254 studies on the spacing effect found that distributed practice outperformed massed practice in the vast majority of conditions tested. Active recall, the kind your brain does when you flip a card and try to retrieve the answer, produces stronger memory traces than reading the same material again.

Flashcards combine both effects. You actively retrieve information (active recall) and you do it on a schedule that catches the memory just before it fades (spaced repetition). For an exam that tests material learned across an entire school year, this is the most efficient way to build durable knowledge.