AP Biology
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About the Course
Study the core scientific principles, theories, and processes that govern living organisms and biological systems. You’ll do hands-on laboratory work to investigate natural phenomena.
Skills You'll Learn
Designing experiments and procedures to test a prediction or theory
Collecting and analyzing data
Interpreting data to draw conclusions
Developing and supporting a scientific claim with evidence
Equivalency and Prerequisites
College Course Equivalent
A two-semester college introductory biology course for biology majors
Recommended Prerequisites
High school courses in biology and chemistry
Exam Date
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Wed, May 10, 2023,
12 PM LocalAP Biology Exam
This is the regularly scheduled date for the AP Biology Exam.
About the Units
The course content outlined below is organized into commonly taught units of study that provide one possible sequence for the course. Your teacher may choose to organize the course content differently based on local priorities and preferences.
Course Content
Unit 1: Chemistry of Life
You’ll learn about water’s role as the basis of life and the functions of macromolecules like lipids and proteins.
Topics may include:
- The structure and chemical properties of water
- The makeup and properties of macromolecules
- The structure of DNA and RNA
On The Exam
8%–11% of exam score
Unit 2: Cell Structure and Function
You’ll study the makeup of cells and the fundamentals of evolution.
Topics may include:
- Cellular components and functions of those components
- Cell interaction with its environment
- The cell membrane structure and function
- Cell regulatory mechanisms like osmosis and selective permeability
- Cellular compartmentalization
On The Exam
10%–13% of exam score
Unit 3: Cellular Energetics
You’ll explore how cells interact with their environment and how fundamental biological processes work at the cellular level.
Topics may include:
- The structure and function of enzymes
- The role of energy in living systems
- The processes of photosynthesis
- The processes of cellular respiration
- Molecular diversity and cellular response to environmental changes
On The Exam
12%–16% of exam score
Unit 4: Cell Communication and Cell Cycle
You’ll learn how cells grow and reproduce, as well as how cells communicate.
Topics may include:
- The mechanisms of cell communication
- Signal transduction
- Cellular responses and feedback mechanisms
- The events in a cell cycle
On The Exam
10%–15% of exam score
Unit 5: Heredity
You’ll learn how traits are passed down from one generation to the next.
Topics may include:
- The process and function of meiosis
- The concepts genetic diversity
- Mendel’s laws and probability
- Non-mendelian Inheritance
- Factors affecting inheritance and gene expression
On The Exam
8%-11% of exam score
Unit 6: Gene Expression and Regulation
You’ll study how hereditary information passes from parent to offspring and how those traits are expressed.
Topics may include:
- The roles and functions of DNA and RNA
- The mechanisms of gene expression
- How genotype affects phenotype
- Mutations, genetic diversity, and natural selection
- Genetic engineering and biotechnology
On The Exam
12%-16% of exam score
Unit 7: Natural Selection
You’ll learn about Darwin’s theory, the concept of natural selection, and evolution.
Topics may include:
- Evidential support for evolution and common ancestry
- The mechanisms of natural selection and speciation
- Environmental and human-caused factors in evolution
- Charting species ancestry through phylogenetic trees and cladograms
- Extinction
- Models of the origin of life on Earth
On The Exam
13%-20% of exam score
Unit 8: Ecology
You’ll explore biological concepts at a broader organism level and analyze how populations interact within ecosystems.
Topics may include:
- Communication and responses to environmental changes
- Energy flow within and across ecosystems
- Factors in the growth, density, and success of populations
- Factors in community and ecosystem dynamics
- Invasive species, human interaction, and environmental changes
On The Exam
10%-15% of exam score
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Course Resources
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AP Classroom Resources
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AP Biology Lab Manual
See an overview of the manual that supports AP Biology laboratory investigations and learn how to order a copy.
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AP Biology Course and Exam Description
This is the core document for the course. It clearly lays out the course content and describes the exam and AP Program in general.
See Where AP Can Take You
AP Biology can lead to a wide range of careers and college majors
Career Areas
103
Majors
52