AP Biology
Study the chemistry of life, cells, genetics, evolution, ecology, and the diversity of organisms.
Start here
Take the free AP Biology diagnostic
It finds what you already know and builds your study plan: the topics to clear first, each a short lesson plus an exit quiz.
Take the free diagnosticCourse Overview
This AP Biology course on Study Mondo covers 30 topics organized across 8 categories. Each topic includes detailed written explanations, worked examples, practice problems with step-by-step solutions, flashcards for review, and interactive lessons to help you master the material.
What You'll Learn
Chemistry of Life
Water, biological macromolecules, and the chemical basis of life
Cell Structure and Function
Cell organelles, membranes, and cellular processes
Cellular Energetics
Enzymes, cellular respiration, and photosynthesis
Cell Communication and Cell Cycle
Signal transduction, cell cycle regulation, and cell division
Heredity
Mendelian genetics, inheritance patterns, and chromosomal basis
Gene Expression and Regulation
DNA replication, transcription, translation, and gene regulation
Evolution
Natural selection, population genetics, and evidence for evolution
Ecology
Population ecology, community interactions, ecosystems, and biodiversity
Start with any category below, or jump to a specific topic that you need help with.
Study tools
📚 Study schedules & cram guides
Pick the schedule that matches your timeline — from a 1-month build-up to a night-before review.
A focused 72-hour rescue plan when the exam is almost here.
~12 hours total study
One full week to lock in the highest-leverage topics and FRQ patterns.
~25 hours total study
A structured 4-week plan that builds mastery without burning out.
~60 hours total over 4 weeks
How to attack free-response questions and earn easy partial credit.
~3-4 hours of focused work
The night-before checklist: top formulas, common traps, and what NOT to do.
~45 minutes to skim
Explore Related Topics
Jump into high-impact topics and keep your study momentum moving.
Water, biological macromolecules, and the chemical basis of life
Water and Its Properties
The unique properties of water and their importance to life
Carbohydrates
Structure, function, and types of carbohydrates in biological systems
Lipids
Structure and function of fats, phospholipids, and steroids
Proteins
Amino acids, protein structure, and functions of proteins
Enzyme Kinetics
Understand enzyme reaction rates and factors
Nucleic Acids
DNA and RNA structure, nucleotides, and genetic information
Cell organelles, membranes, and cellular processes
Enzymes, cellular respiration, and photosynthesis
Signal transduction, cell cycle regulation, and cell division
Mendelian genetics, inheritance patterns, and chromosomal basis
DNA replication, transcription, translation, and gene regulation
DNA Structure and Replication
DNA structure, replication process, and proofreading mechanisms
Transcription and RNA Processing
Gene transcription, RNA processing in eukaryotes, and gene expression
Translation and Protein Synthesis
The genetic code, translation process, and protein synthesis
Gene Regulation
Gene regulation in prokaryotes and eukaryotes, operons, and epigenetics
Natural selection, population genetics, and evidence for evolution
Population ecology, community interactions, ecosystems, and biodiversity
Population Ecology
Population growth, carrying capacity, and population dynamics
Community Ecology and Interactions
Species interactions, ecological niches, and community structure
Population Dynamics
Population growth and regulation
Ecosystems and Energy Flow
Energy flow, food chains, food webs, and biogeochemical cycles