AP Biology Sprint

Turn biology facts into scored explanations.

AP Bio rewards students who can connect structures to functions, mechanisms to data, and experiments to claims. This sprint makes the next move clear: name the process, use the evidence, explain the mechanism, and protect the control or variable.

Start AP Bio Practice

Next action: start the practice set. The result will tell you whether to repeat, advance, or open FRQ scoring.

How this course works

Start here, score what happened, then let the result choose the next unit or parent update.

  1. Run a short set that mixes molecular biology, data, genetics, evolution, and ecology.
  2. Score the missing move: claim, data, mechanism, experimental variable, control, or model interpretation.
  3. Save the update so the parent sees the AP Bio skill that actually changed.
Score AP Bio FRQ
Course detail

First scored move

Claim-Evidence-Reasoning

A plant cell is placed in a solution that changes the availability of water around the cell. Make a claim about the direction of water movement, identify the evidence you would need, and explain how water's properties affect the result.

Directional claim

Evidence named

Water property explained

Membrane or water-potential link

Avoids unsupported certainty

56 AP Bio simulator questions plus 8 FRQ prompts are live.

Unit map

U1

8%

Chemistry of Life

Memorizing molecule names without connecting structure to function.

Next move

Match each macromolecule to one structure feature and one function.

Companion proof: Complete one practice set for Chemistry of Life, then save a parent update that names the missed concept, the corrected move, and the next unit check.

U2

12%

Cell Structure and Function

Describing organelles by location without explaining function.

Next move

Draw one membrane transport diagram and label the energy requirement.

Companion proof: Complete one practice set for Cell Structure and Function, then save a parent update that names the missed concept, the corrected move, and the next unit check.

U3

14%

Cellular Energetics

Describing energy as created instead of transformed.

Next move

Draw the chloroplast and mitochondrion energy flow.

Companion proof: Complete one energetics FRQ and highlight the claim, data trend, mechanism, and control or variable sentence.

U4

14%

Cell Communication and Cell Cycle

Listing pathway parts without explaining how the signal changes cell behavior.

Next move

Write a three-step signal pathway: reception, transduction, response.

Companion proof: Complete one practice set for Cell Communication and Cell Cycle, then save a parent update that names the missed concept, the corrected move, and the next unit check.

U5

12%

Heredity

Confusing mitosis with meiosis.

Next move

Compare mitosis and meiosis in a two-column table.

Companion proof: Complete one practice set for Heredity, then save a parent update that names the missed concept, the corrected move, and the next unit check.

U6

16%

Gene Expression and Regulation

Mixing up transcription and translation locations.

Next move

Explain lac operon regulation in five bullets.

Companion proof: Write one two-sentence gene-expression explanation that names mRNA, protein, and the regulation step.

U7

14%

Natural Selection

Saying individuals evolve instead of populations.

Next move

Write one allele-frequency explanation using population language.

Companion proof: Complete one practice set for Natural Selection, then save a parent update that names the missed concept, the corrected move, and the next unit check.

U8

8%

Ecology

Confusing energy flow with matter cycling.

Next move

Sketch logistic growth and label carrying capacity.

Companion proof: Complete one practice set for Ecology, then save a parent update that names the missed concept, the corrected move, and the next unit check.