--- title: The Best AP Biology Notes to Study With · PrepScholar description: Studying for AP Biology? This guide offers a complete collection of notes and labs, as well as study tips to help you prep effectively. image: https://360031.fs1.hubspotusercontent-na1.net/hubfs/360031/feature_apbiologynotes.jpg --- **[![PrepScholar](https://www.prepscholar.com/wp-content/uploads/2023/03/PrepScholar-Logo-Colored.png)](https://www.prepscholar.com/)** CALL NOW: [+1 (866) 811-5546](tel:18668115546) [![Start Free Trial](https://no-cache.hubspot.com/cta/default/360031/interactive-171805697634.png)](https://cta-service-cms2.hubspot.com/web-interactives/public/v1/track/redirect?encryptedPayload=AVxigLKJluK2NyG3jpAJh%2F2lClc1fhnVHyMZoQonqRxtJngB8FMX6lc78F84JqOaVAL0d36TA5%2FYuH%2FLCJw8AG3ewREi%2F7a3XDouZgjxWfYCBUge6z76KnSykOxONl3avMK0gUjJGpJdyJE2BDTx8g3bsgHwMtx4Kr9Jfh6Jr7WA2XEIgtLw1OoVvAMo4Kw%3D&webInteractiveContentId=171805697634&portalId=360031) ## Choose Your Test SAT Prep ACT Prep [PrepScholar Advice Blog](https://blog.prepscholar.com/) ☰ - Search Blogs By Category - [SAT](https://blog.prepscholar.com/topic/sat) - [ACT](https://blog.prepscholar.com/topic/act) - [College Admissions](https://blog.prepscholar.com/topic/college-admissions) - [AP and IB Exams](https://blog.prepscholar.com/topic/advanced-placement-ap) - [PSAT](https://blog.prepscholar.com/topic/psat-info-and-strategies) - [TOEFL](https://blog.prepscholar.com/topic/toefl) - [GPA and Coursework](https://blog.prepscholar.com/topic/coursework-gpa) # [The Best AP Biology Notes to Study With](https://blog.prepscholar.com/ap-biology-notes) ![author image](http://cdn2.hubspot.net/hubfs/360031/author_sam.png) Posted by [Samantha Lindsay](https://blog.prepscholar.com/author/samantha-lindsay) | Updated on February 15, 2025 [Advanced Placement (AP)](https://blog.prepscholar.com/topic/advanced-placement-ap)   ![feature_apbiologynotes.jpg](https://360031.fs1.hubspotusercontent-na1.net/hub/360031/hubfs/feature_apbiologynotes.jpg?width=600&name=feature_apbiologynotes.jpg "feature_apbiologynotes.jpg") It's natural for your in-class notes to get a little disorganized in a course that covers as much material as AP Biology. Whether you're missing a couple of sections of notes or you just want to see a clearer outline of how the course is structured, this article will be helpful. **We've compiled all the information you need to know for the AP Biology test in the form of links to online notes and descriptions of labs.** We'll also follow up with some tips on using these notes effectively.   ## How to Use These AP Biology Notes **The notes in this article can be used to study for AP Biology tests throughout the year** that deal with smaller portions of the curriculum, or they can be referenced in your studying for the final AP exam. In both cases, you'll want to supplement these notes with information from an AP Biology textbook or review book. You should also **incorporate practice questions, quizzes, and tests into your studying** to solidify your knowledge of the material. You can find these resources in our [AP Biology study guide](https://blog.prepscholar.com/ap-biology-study-guide), [a review book](https://blog.prepscholar.com/best-ap-biology-books), your textbook, and the materials provided by your teacher. In-class tests, quizzes, and labs are also useful study aids. **Don't just read through the notes once and expect to do well!** Since AP Biology requires a significant amount of analysis and critical thinking beyond memorization, you need to practice answering questions that test skills beyond the basic knowledge you'll get from these notes. **If you're using these notes to study for a particular portion of the AP Biology course, you can find the appropriate topic area in the list below.** We've organized the topics according to the the eight major units of the course so that you can find what you're looking for more easily. If you're using these notes to study for the final exam, **assess your strengths and weaknesses first so that you can prioritize the right content areas**. [Take a diagnostic test](https://blog.prepscholar.com/ap-biology-practice-tests) to determine how high you're currently scoring and which types of questions give you the most trouble. You can use a test from an AP Biology review book or an official one from the College Board. Print it out and **give yourself the appropriate amount of time for each section** so that you're not caught off-guard by time constraints on test day.   ![body_takingatest.jpg](https://360031.fs1.hubspotusercontent-na1.net/hub/360031/hubfs/body_takingatest.jpg?width=600&name=body_takingatest.jpg "body_takingatest.jpg")*If you're practicing for in-class tests, you should also rehearse your creepy stare so that your teacher will be too terrified to give you anything less than an A.*   ## The Best AP Biology Notes and Review for Your Studying In this section, We'll give you links to some resources for notes on every aspect of the AP Biology curriculum. Make sure you supplement these with class notes and records of your lab assignments.   ### AP Biology CourseNotes We found some of the most comprehensive and up-to-date AP Biology notes on [CourseNotes.](https://www.course-notes.org/Biology) **We've provided links to notes on specific topics to make it easier for you to target areas that are difficult for you.** One downside to these notes is that there's a ton of text and no pictures to break it up. If you find that this format doesn't work well for you, consider getting a review book or consulting one of the other resources listed in the next section.   #### Unit 1: Chemistry of Life - [Molecular biology](https://www.course-notes.org/Biology/Outlines/Chapter_2_The_Chemical_Context_of_Life) - [Water](https://www.course-notes.org/Biology/Outlines/Chapter_3_Water_and_the_Fitness_of_the_Environment) - [Carbon/molecular diversity of life](https://www.course-notes.org/Biology/Outlines/Chapter_4_Carbon_and_the_Molecular_Diversity_of_Life) - [Macromolecules](https://www.course-notes.org/Biology/Outlines/Chapter_5_The_Structure_and_Function_of_Macromolecules)   #### Unit 2: Cell Structure and Function - [Cell structure](https://www.course-notes.org/Biology/Outlines/Chapter_6_A_Tour_of_the_Cell) - [Prokaryotes vs eukaryotes](https://www.course-notes.org/biology/topic_notes/5_cell_structure/prokaryotic_vs_eukaryotic_cells) - [Eukaryotic cell structure](https://www.course-notes.org/biology/topic_notes/5_cell_structure/eukaryotic_structures) - [Cell membrane properties](https://www.course-notes.org/Biology/Outlines/Chapter_7_Membrane_Structure_and_Function) - [Immune response](https://www.course-notes.org/Biology/Outlines/Chapter_43_The_Immune_System)   #### Unit 3: Cellular Energetics - [Homeostasis](https://www.course-notes.org/biology/topic_notes/26_renal_system_digestive_system/homeostasis) - [Photosynthesis](https://www.course-notes.org/Biology/Outlines/Chapter_10_Photosynthesis) - [Cellular respiration](https://www.course-notes.org/Biology/Outlines/Chapter_9_Cellular_Respiration_Harvesting_Chemical_Energy)   #### Unit 4: Cell Communication and Cell Cycle - [Cell communication](https://www.course-notes.org/Biology/Outlines/Chapter_11_Cell_Communication) - Cell cycle - [Mitosis](https://course-notes.org/biology/topic_notes/11_cell_division/cell_cycle) - [Meiosis](https://course-notes.org/biology/topic_notes/12_meiosis/meiosis_overview) - [Cancerous cells](https://course-notes.org/biology/topic_notes/11_cell_division/checkpoints_cancer)   #### Unit 5: Heredity - [DNA structure](https://www.course-notes.org/biology/topic_notes/14_dna_genetic_material/dna_structure) and [replication](https://www.course-notes.org/biology/topic_notes/14_dna_genetic_material/dna_replication) - [Mendel and the laws of inheritance](https://www.course-notes.org/Biology/Outlines/Chapter_14_Mendel_and_the_Gene_Idea)   #### Unit 6: Gene Expression and Regulation - [Genes](https://www.course-notes.org/Biology/Outlines/Chapter_17_From_Gene_to_Protein)   #### Unit 7: Natural Selection - [Natural selection](https://www.course-notes.org/Biology/Outlines/Chapter_22_Descent_with_Modification_Darwinian_View_of_Life) - [Hardy-Weinberg](https://www.nature.com/scitable/definition/hardy-weinberg-equilibrium-122/#:~:text=The%20Hardy%2DWeinberg%20equilibrium%20is,the%20absence%20of%20disturbing%20factors.) - [Animal evolution](https://www.course-notes.org/Biology/Outlines/Chapter_32_An_Introduction_to_Animal_Diversity) - Plant evolution ([part 1](https://course-notes.org/biology/outlines/chapter_29_plant_diversity_i_how_plants_colonized_land) and [part 2](https://course-notes.org/biology/outlines/chapter_30_plant_diversity_ii_the_evolution_of_seed_plants)) #### Unit 8: Ecology - [Biodiversity](https://www.course-notes.org/Biology/Outlines/Chapter_26_The_Tree_of_Life_An_Introduction_to_Biological_Diversity) - [Vertebrates](https://www.course-notes.org/Biology/Outlines/Chapter_34_Vertebrates) - [Invertebrates](https://www.course-notes.org/Biology/Outlines/Chapter_33_Invertebrates) - [Eukaryotes](https://www.course-notes.org/Biology/Outlines/Chapter_19_Eukaryotic_Genomes) - [Prokaryotes](https://www.course-notes.org/Biology/Outlines/Chapter_27_Prokaryotes) - [Protists](https://www.course-notes.org/Biology/Outlines/Chapter_28_Protists) - [Fungi](https://www.course-notes.org/Biology/Outlines/Chapter_31_Fungi) - [Ecology](https://www.course-notes.org/Biology/Outlines/Chapter_50_An_Introduction_to_Ecology_and_the_Biosphere) - [Behavioral](https://www.course-notes.org/Biology/Outlines/Chapter_51_Behavioral_Ecology) - [Population](https://www.course-notes.org/Biology/Outlines/Chapter_52_Population_Ecology) - [Community](https://www.course-notes.org/Biology/Outlines/Chapter_53_Community_Ecology)   ![body_bigidea.jpg](https://360031.fs1.hubspotusercontent-na1.net/hub/360031/hubfs/body_bigidea.jpg?width=600&name=body_bigidea.jpg "body_bigidea.jpg")*So many Big Ideas!*   ### Other Content Resources for AP Biology There are also a couple of additional places where you **can find notes on specific sections of the course**. You can also [find a study guide with notes here.](https://support.ebsco.com/LEX/AP-Biology-Study-Guide.pdf) [This Google doc](https://docs.google.com/document/u/0/d/1q5xsHKPzkTq4C9yd2dRSGhyz97_JLWoas1-_bqHX7W0/mobilebasic) is a long but thorough overview of the entire course. It strikes a good balance between not being overwhelming but also covering the course in enough depth to actually be a helpful study resource. [This one-page "cheat sheet" from Fiveable](https://cdn.prod.website-files.com/632be2995229ca0bd3715246/6622e389b20cd2328f265fce_AP%20Biology%20Cheatsheet%20(2024).pdf) is a good high-level overview of each of the units covered in the course. It's not nearly enough on its own, but it's a good resource for when you want a resource to quickly look over what each unit covers.   [![Looking for help studying for your AP exam? Our one-on-one online AP tutoring services can help you prepare for your AP exams. Get matched with a top tutor who got a high score on the exam you're studying for!](https://no-cache.hubspot.com/cta/default/360031/interactive-151904284501.png)](https://blog.prepscholar.com/hs/cta/wi/redirect?encryptedPayload=AVxigLI4CQw59LdM%2FurGmDcXpNhIh%2FFXeUbxppN5CSg4YvyfcnogEJOk8g85DEaKR23uqSZK7k7H%2BUmrTwjDTMBaFgvHe9rA1r%2BvCg5zAguumQUTlKEW0Ew5tHjaDaPSwyhYK6U8iPQHj4AJGpx83G4VaTRdvXZVCbQoHlEuxLyuR9TbgDgl2E%2B87zKS618%3D&webInteractiveContentId=151904284501&portalId=360031)   ### Big-Picture AP Biology Summaries **The notes in this section are useful for revisiting major topics right before the AP Bio exam.** [This packet](https://web.archive.org/web/20150213064838/https://internet.savannah.chatham.k12.ga.us/schools/ihs/staff/Johnson/Shared%20Documents/AP%20Biology/AP%20Biology%20Exam%20Guide.pdf) covers all the main concepts you'll need to learn for AP Biology. You can also take a look at [this extremely detailed review sheet](https://web.archive.org/web/20150209032717/https://wuerthapbiology.wikispaces.com/file/view/GiantReviewSheet.pdf/426185968/GiantReviewSheet.pdf) that provides a similar rundown of the most essential parts of the course. If you want more guidance in your studying, consider buying a review book. Read [our guide to the best review books for AP Biology here](https://blog.prepscholar.com/best-ap-biology-books).   ## AP Biology Studying: 3 Essential Strategies Before you dive into the notes, read these three key tips so you can make the most out of the time you spend getting cozy with biological facts.   ### Tip 1: Draw Diagrams and Rewrite Definitions There are many complex concepts you'll need to understand to do well on any assessment in AP Biology. But these can be difficult to master just by reading notes. Drawing **out the processes described in your textbook and notes can be very helpful** in bridging the gap between memorization and genuine understanding. If you draw a diagram of the different parts of a cell or the process of cellular respiration, for example, it will make more sense to you logically and will be easier to recall on the test. If this seems too involved, you can **try rewriting the complex explanation in your own words to simplify it** and make it easier to remember. Even just the act of writing it down will help you recall it better.   ![body_circuits.jpg](https://360031.fs1.hubspotusercontent-na1.net/hub/360031/hubfs/body_circuits.jpg?width=600&name=body_circuits.jpg "body_circuits.jpg")*In AP Biology (and the subject of biology as a whole), everything is connected.*   ### Tip 2: Hit Refresh Remembering something right after you've studied it is one thing, and remembering it in the long term is another. **After you get through a few sections of the AP Biology notes above, go back and do a quick review of all the information you've learned.** We also recommend doing this after you get through all the notes that pertain to a Big Idea for the course. It will help you synthesize and retain the information so it doesn't fall out of your brain as soon as you move on to the next topic (which can happen in AP Biology because there are so many details to recall!).   ### Tip 3: Study the Method, Not Just the Information It's easy to get caught up in going over the minuscule details of every topic in AP Biology, but you should **devote at least some of your time to reviewing labs and general experimental principles**. This includes concepts such as dependent and independent variables, control groups, and unit conversions. You'll see quite a few questions on the AP Biology exam (and most likely on your in-class tests throughout the year) that deal with experimental scenarios. It's much less stressful to answer these types of questions if you're familiar with how similar experiments were conducted in your class.   ## Conclusion: The Best AP Biology Notes for Studying **You can continue to use this article as a reference point as you progress through the AP Biology curriculum.** These notes should help you study for in-class assessments as well as the final AP test. **Take practice tests often, and go over any areas in which you feel less confident.** If you take the time to prepare appropriately, you'll be surprised by how little stress you feel on test day!     ![body-whats-next-sign-cc0](https://360031.fs1.hubspotusercontent-na1.net/hub/360031/hubfs/body-whats-next-sign-cc0.jpg?width=400&name=body-whats-next-sign-cc0.jpg)   ## What's Next? **Is AP Biology especially challenging compared to other APs?** Read this article for [a detailed discussion on the difficulty level of the AP Bio course and exam](https://blog.prepscholar.com/is-ap-biology-hard). **As you review your notes for the AP Bio test, be sure to check out our biology topic guides.** We go over [the difference between homologous and analogous structures](https://blog.prepscholar.com/analogous-homologous-structures-examples-definition), [what the photosynthesis equation is and how to use it](https://blog.prepscholar.com/photosynthesis-chemical-equation-formula), and [the purpose of enzymes](https://blog.prepscholar.com/what-are-enzymes-definition-types). 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[![Share on email](https://360031.fs1.hubspotusercontent-na1.net/hub/360031/hubfs/email-color.png?width=24&name=email-color.png)](mailto:?subject=Check%20out%20https%3A%2F%2Fblog.prepscholar.com%2Fap-biology-notes%3Futm_medium%3Dsocial%26utm_source%3Demail%20&body=Check%20out%20https%3A%2F%2Fblog.prepscholar.com%2Fap-biology-notes%3Futm_medium%3Dsocial%26utm_source%3Demail) [![Share on facebook](https://360031.fs1.hubspotusercontent-na1.net/hub/360031/hubfs/facebook-color.png?width=24&name=facebook-color.png)](http://www.facebook.com/share.php?u=https%3A%2F%2Fblog.prepscholar.com%2Fap-biology-notes%3Futm_medium%3Dsocial%26utm_source%3Dfacebook) [![Share on twitter](https://360031.fs1.hubspotusercontent-na1.net/hub/360031/hubfs/x-twitter-color.png?width=24&name=x-twitter-color.png)](https://twitter.com/intent/tweet?original_referer=https%3A%2F%2Fblog.prepscholar.com%2Fap-biology-notes%3Futm_medium%3Dsocial%26utm_source%3Dtwitter&url=https%3A%2F%2Fblog.prepscholar.com%2Fap-biology-notes%3Futm_medium%3Dsocial%26utm_source%3Dtwitter&source=tweetbutton&text=) [![Share on linkedin](https://360031.fs1.hubspotusercontent-na1.net/hub/360031/hubfs/linkedin-color.png?width=24&name=linkedin-color.png)](http://www.linkedin.com/shareArticle?mini=true&url=https%3A%2F%2Fblog.prepscholar.com%2Fap-biology-notes%3Futm_medium%3Dsocial%26utm_source%3Dlinkedin) About the Author ![author image](http://cdn2.hubspot.net/hubfs/360031/author_sam.png) Samantha Lindsay Samantha graduated with honors from Dartmouth College as a Studio Art major in 2014. In high school, she earned a 2400 on the SAT, 5's on all seven of her AP tests, and was named a National Merit Scholar. As a blog content writer for PrepScholar, her goal is to help students adopt a less stressful view of standardized testing and other academic challenges through her articles. ## Ask a Question Below Have any questions about this article or other topics? 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All rights reserved SAT® is a registered trademark of the College Entrance Examination BoardTM. The College Entrance Examination BoardTM does not endorse, nor is it affiliated in any way with the owner or any content of this web site. ACT® is a registered trademark belonging to ACT Education Corporation ("ACT"). ACT is not involved with or affiliated with PrepScholar Inc., nor does ACT endorse or sponsor any of the products or services offered by PrepScholar Inc. GRE® and TOEFL® are registered trademarks of the ETS®. The ETS® does not endorse, nor is it affiliated in any way with, the owner or any content of this web site. GMAT® is a registered trademark of the Graduate Management Admissions Council®. The Graduate Management Admissions Council® does not endorse, nor is it affiliated in any way with, the owner or any content of this website. ```json { "@context" : "https://schema.org", "@type" : "BlogPosting", "author" : { "@type" : "Person", "name" : "Samantha Lindsay", "url" : "https://blog.prepscholar.com/author/samantha-lindsay" }, "dateModified" : "2025-02-15T00:48:12+00:00", "datePublished" : "2022-05-03T13:39:00+00:00", "description" : "Studying for AP Biology? This guide offers a complete collection of notes and labs, as well as study tips to help you prep effectively.", "headline" : "The Best AP Biology Notes to Study With", "image" : "http://cdn2.hubspot.net/hubfs/360031/feature_apbiologynotes.jpg", "mainEntityOfPage" : { "@id" : "https://blog.prepscholar.com/ap-biology-notes", "@type" : "WebPage" }, "publisher" : { "@type" : "Organization", "logo" : { "@type" : "ImageObject", "url" : "https://www.prepscholar.com/wp-content/uploads/2023/03/PrepScholar-Logo-Colored.png" }, "name" : "PrepScholar" } } ```