AP Biology FRQ — Tips, Strategies & Sample Answers | RevisionDojo

Common FRQ Mistakes to Avoid

• Writing essays when bullet points would be more efficient
• Forgetting to reference the given data in the question
• Providing vague answers without evidence
• Ignoring experimental controls when designing experiments

FRQ Practice Example

Question:
A scientist is studying the effect of light intensity on photosynthesis rates in Elodea plants. Design an experiment to test the relationship between light intensity and the rate of photosynthesis.

High-Scoring Approach:

• Hypothesis: As light intensity increases, the rate of photosynthesis will increase until a saturation point is reached.
• Variables: Independent — light intensity; Dependent — oxygen bubble production rate; Controlled — temperature, plant species, CO₂ concentration.
• Procedure: Use a light source at varying distances, measure oxygen production in 5-minute intervals.
• Expected Results: A graph showing a rise in photosynthesis rate until a plateau is reached.

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FAQ – AP Biology FRQ

1. How many points are FRQs worth?
They make up 50% of the total exam score.

2. Should I write in full sentences?
Yes for explanations, but bullet points are fine if they’re complete and clear.

3. Can I draw diagrams?
Yes, and they often earn points if labeled correctly.

4. How do I practice for the experimental design question?
Review AP labs and practice writing procedures with controls and variables.

5. Should I skip questions if I’m unsure?
No — attempt every part; partial credit is common.

6. How long should I spend on each FRQ?
20–25 minutes for long FRQs, 8–10 minutes for short FRQs.

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