AP Biology Resources

AP Biology explores the fundamental scientific principles, theories, and mechanisms that control the functions of living organisms and biological systems. Click through our free AP Biology Study Guides and AP Biology flashcards below:

AP Biology Multiple Choice Practice Problems

AP Biology AP Free Response Practice Problems

AP Biology Score Calculator

Ultimate AP Biology Study Guide

The only resource you need to get a 5 on the AP Biology exam.

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AP Biology Ultimate Guide

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AP Biology Ultimate Guide

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AP Biology Multiple Choice Practice Problems

🧫 AP Biology Unit 1: Chemistry of Life

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Unit 1: Chemistry of Life

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Unit 1: Chemistry of Life

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🔬 AP Biology Unit 2: Cell Structure and Function

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Unit 2: Cell Structure and Function

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Unit 2: Cell Structure and Function

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🩻 AP Biology Unit 3: Cellular Energetics

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Unit 3: Cellular Energetics

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Unit 3: Cellular Energetics

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Unit 3 Multiple Choice Practice Problems

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🧪 AP Biology Unit 4: Cell Communication and Cell Cycle

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Unit 4: Cell Communication and Cell Cycle

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Unit 4: Cell Communication and Cell Cycle

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Unit 4 Multiple Choice Practice Problems

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👨‍👩‍👦‍👦 AP Biology Unit 5: Heredity

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Unit 5: Hereditary

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Unit 5: Hereditary

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Unit 5 Multiple Choice Practice Problems

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🧬 AP Biology Unit 6: Gene Expression and Regulation

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Unit 6: Gene Expression and Regulation

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Unit 6: Gene Expression and Regulation

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🦕 AP Biology Unit 7: Natural Selection

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Unit 7: Natural Selection

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Unit 7: Natural Selection

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🪴 AP Biology Unit 8: Ecology

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Unit 8: Ecology

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Unit 8: Ecology

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Videos about AP Biology

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Tips from Former AP Students

AP Prep

Everything You Need to get a 5 on AP Biology

This guide will break down a few of our favorite AP Biology exam tips to getting a 5! AP Biology can be a tough course, but if you're into STEM and want a leg up in college, it's worth the challenge. With the right strategies and resources, it’s definitely possible for you to ace the exam. Free AP Biology Resources To learn how to ace the AP Biology exam, avoid last-minute cramming. Start studying early and pace yourself. After each in-class test, take time to review and reinforce your understanding of the material. These resources and AP Biology exam tips will provide go over pretty much eve...

AP Prep

Purine vs Pyrimidine: Key Differences & Bonds to Know

Introduction Purines and pyrimidines are the essential building blocks of all life. They make up DNA and RNA, molecules that carry the genetic code in all living organisms. They are two different families of nitrogenous bases that pair together in the DNA ladder and are vital to the structure of RNA. Without them, we wouldn’t be here! The unique properties and uses of purines and pyrimidines are SUPER important for DNA replication, transcription, and translation to be able to happen. In this article, you’ll learn exactly what purines and pyrimidines are, as well as their similarities and diffe...

AP Prep

7 Things You Should Know Before You Sign up for AP Exams

Taking an AP course is a big step for students who want to be challenged and earn the plus of getting college credit. The excitement of possibly getting college credit can be overwhelming, but before you decide to take the AP exam, there are some important things to keep in mind, such as knowing where to find the right resources and AP Study Guides to make sure you get a 5! Knowing a few things about what AP exams you should take and which to avoid is SO IMPORTANT for your success in your AP courses. In this guide, we’ll walk you through the 7 essential things you should know before you regi...

Questions & AnswersIf you have any other questions - please get in touch

What is the AP Biology exam format?

The exam format includes 60 multiple-choice questions, and 6 free-response questions. Both the multiple choice section and the free response questions take up 50% of the exam's weight. Students are allotted 1 hour and 30 minutes to complete the multiple-choice section, and 1 hour and 30 minutes to compose their responses to the free response questions. To make sure you’re prepared enough to finish in time, take a look through our free AP Biology study guide that covers the most important material you should know.

How do I study for AP Biology?

You’ve likely covered a lot of material during your course this year, but to get a 5 on the AP exam, it’s important you understand how often each topic shows up. This class will involve immersive laboratory experiences, where you will actively investigate and analyze natural phenomena firsthand. Once you take a look through the breakdown below, make sure to read through the AP Biology study guide above with all the key points you should know for each unit.

What units are on AP Biology?

Unit 1: The Biochemistry of Existence
During this unit, you will begin an exploration into the crucial role of water as the foundation of life, as well as begin an understanding of the roles and functions of macromolecules such as lipids and proteins.
Unit 2: Exploring Cellular Structure and Function, and the Fundamentals of Evolution
In this unit, you will begin a comprehensive study of cellular composition, diving deep into the architecture that defines cells. Additionally, you will also immerse yourself in the fundamental concepts of evolution, unraveling the mechanisms that makeup the diversity and development of life forms over time.
Unit 3: Investigating Cellular Energetics and Interactions with the Environment
Within this unit, you will begin to investigate the study of cellular energetics, diving into understanding the mechanisms that govern how cells harness and utilize energy. Additionally, you will begin to understand how cells interact in tandem with their environment, understanding the biological processes that operate at the cellular level.
Unit 4: Cellular Communication, Growth, and Reproduction
In this unit, you will gain an in-depth understanding of the processes that control cell growth and reproduction. Also, you will understand the complex world of cellular communication, unraveling the mechanisms through which cells interact and coordinate their activities.
Unit 5: Exploring Heredity and the Transmission of Traits across Generations
During this unit, you will delve into the complex mechanisms that control the passage of traits from one generation to the next. Through a well rounded exploration, you will gain a profound understanding of how genetic information shapes the characteristics of living organisms over time.
Unit 6: Investigating Gene Expression, Transmission, and Regulation of Hereditary Information
Within this unit, you will engage in an in-depth study of the processes through which hereditary information is transmitted from parents to offspring. Additionally, you will begin to explore the world of trait expression, unraveling the mechanisms that govern how genetic traits manifest in living organisms.
Unit 7: Natural Selection
In this unit, you will dive into the comprehensive study of natural selection, immersing yourself in the intricacies of Darwin's groundbreaking theory. Additionally, you will gain a profound understanding of the concept of evolution, unraveling the mechanisms through which species adapt and change over time.
Unit 8: Ecology
Within this unit, you will embark on an extensive exploration of ecological principles, expanding your understanding of biological concepts beyond the cellular level. You will gain insights into the intricate interactions that shape populations within ecosystems, contributing to your comprehension of the delicate balance of life within these intricate biological communities.

What are the video resources?

We’ve handpicked some of our favorite youtube channels and videos that align with the key topics and themes covered in our AP Biology study guides. These channels can be a great way to get a better understanding of the Biological environment, cell exploration and understanding, as well as the comprehension of hereditary mutations and adaptations, as well as natural selection and ecology.

Where can I ask AP Biology questions?

Connect with like-minded students who are also preparing for the exam and delve into the world of AP Biology review together. By joining our Discord community, you can collaborate, exchange questions, discuss AP Biology notes, and discuss any tricky problems with fellow AP Biology students. Together, you can better understand challenging concepts, share helpful resources, and support each other on your way to getting a 5!

What is AP Biology?

AP Biology is an exploration and Comprehension of the Biological Environment, Cellular Dynamics, Hereditary Mutations, Adaptations, Natural Selection, and Ecology Understanding. On this page, you’ll find AP Biology resources to help you with your AP Biology review.