Build your AP Biology study plan around a clear baseline, guided practice and useful feedback. Work through the subjects below, review your mistakes and return to a timed test when you are ready.
AP Biology · current eight-unit practice. 60 four-choice questions in 90 minutes, a full 10-minute break, then two long and four short free responses sharing 90 minutes. Original simulated investigations, new data and figures, and graph/model drawing tools. Source-bank variants reuse some questions and scenarios. Writing and drawings save for rubric-guided review. Instructional question families recur across variants; these are not independently equated official exams. Editorial review edition 5: revised questions, explanations and skill coverage. Difficulty is an editorial estimate; recurring families are not independent or psychometrically equated tests. Duplicate-reviewed questions use distinct givens or evidence; shared instructional skills and reasoning families recur.
Start with the default section countdowns for this practice format. Custom pacing lets you shorten or extend section times when working on speed, and your report identifies adjusted timing. Check the exam administrator’s current guidance for official test-day requirements.
Official AP Biology resources
AP Biology subjects and lesson topics
Lessons combine a worked example, guided exploration and checked exercises. Required steps must be completed before a lesson counts toward your progress. These are available study topics, not a guarantee of official exam coverage or a score increase.
Multiple Choice · Section I
1.1 Structure of Water and Hydrogen Bonding
Connect water’s polarity and hydrogen bonding to cohesion, temperature stability, and biological transport. Distinguish bonds within a molecule from attractions among molecules.
1.2 Elements of Life
Track carbon, nitrogen, phosphorus, and sulfur through biological molecules. Explain why growing organisms require matter as well as energy.
1.3 Introduction to Macromolecules
Relate building blocks, covalent assembly, and hydrolysis to biological macromolecules. Avoid assuming all large biological molecules are repeating-unit polymers.
1.4 Carbohydrates
Connect carbohydrate linkage and branching with energy storage and structural support. Explain function through molecular arrangement rather than naming a sugar alone.
1.5 Lipids
Relate lipid structure to membranes and energy storage. Compare nonpolar hydrocarbon regions with the amphipathic organization of phospholipids.
Explore 55 more lessons in this subject in the student workspace.
Science Practices
Concept Explanation
Build a biological explanation by connecting a specific change with a mechanism and a measured consequence. Distinguish description, explanation, prediction, and justification.
Visual Models and Representation
Create and interpret models using meaningful boundaries, labels, arrows, and relationships. A requested graph or drawing must be produced, not replaced only by a description.
Questions and Methods
Design a biological investigation with a testable question, defined variables, independent replication, and meaningful controls. Separate a treatment effect from the effect of handling or apparatus.
Representing and Describing Data
Build graphs that communicate the measured relationship accurately. Select a representation from the data structure and follow the requested plotting instructions.
Statistical Tests and Data Analysis
Use sample variability, uncertainty of a mean, and chi-square testing for appropriate data. State the null model and distinguish rejecting it from proving an alternative mechanism.
Free Response · Section II
Scientific Argumentation and Free Response
Answer every requested part with a claim, specific evidence, and biological reasoning. Construct requested graphs or models as well as written explanations. Practice responses support rubric-guided review without a validated AP 1–5 prediction.
Exam Workshop
Formulas Units and Calculator Practice
Use the official equations reference to select a relationship, define symbols, and preserve units. For 2027, use a permitted four-function calculator with square root or a permitted non-graphing scientific calculator; handheld graphing or storage-capable models are not allowed under the current policy.
Exam Pacing and Paper Graphing
Practice the current structure: 60 multiple-choice questions in 90 minutes, a full 10-minute break, then six free-response questions sharing 90 minutes. The official hybrid exam presents questions digitally and uses handwritten free responses.
Turn your results into your next study session
Complete a practice test. Set aside the time required by the selected form and submit your answers so the result can be saved.
Review the missed questions. Read the correct choices and explanations. Written responses use the provided review guidance where applicable.
Practice the underlying skill. Choose a lesson from the subjects above. Use available targeted practice and your mistake notebook according to your access.
Plan the next attempt. Your calendar records completed activities, and PDF reports help you review progress over time.
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