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Study materials›AP Biology
AP BIOLOGY STUDY GUIDE
AP Biology study guide
Free AP Biology study guides with unit notes, flashcards, and practice questions for focused exam review.
HOW TO USE THIS GUIDE
Study the idea, then retrieve it.
Start with the unit you are taking now, retrieve the ideas without looking, then return to the cards that took the most effort.
Answer its flashcards from memory
Write the practice responses
Review only the missed ideas
Pick the part you need today.
Each set includes a lesson, recall cards, and written questions.
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AP Biologyそ
Unit 1: Chemistry Foundations Study Guide
Review water, carbon, macromolecules, monomers, bonds, and molecular structure for AP Biology Unit 1.
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Unit 2: Cell Structure and Function Study Guide
Study organelles, membrane transport, surface-area ratios, water potential, and cellular compartments.
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Unit 3: Cellular Energetics Study Guide
Learn enzymes, photosynthesis, cellular respiration, energy coupling, and metabolic regulation.
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Unit 4: Cell Communication and Cell Cycle
Review receptors, signal transduction, feedback, mitosis, and cell-cycle control for AP Biology Unit 4.
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Unit 5: Heredity Study Guide
Review meiosis, Mendelian genetics, probability, inheritance patterns, and sources of genetic variation.
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Unit 6: Gene Expression and Regulation Study Guide
Study DNA replication, transcription, translation, gene regulation, mutation, and biotechnology.
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Unit 7: Natural Selection Study Guide
Review evolution, population genetics, evidence for common ancestry, speciation, and phylogeny.
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Unit 8: Ecology Study Guide
Study population growth, species interactions, energy flow, nutrient cycles, biodiversity, and disruption.
Open free set ›WHAT TO REVIEW
A clean exam checklist.
Mark an item ready only when you can explain it without the source.
- ○Chemistry of life
- ○Cell structure and transport
- ○Cellular energetics
- ○Cell communication and the cell cycle
- ○Heredity
- ○Gene expression and regulation
- ○Natural selection
- ○Ecology