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AP Biology practice

A tutor explains it once. Sugar brings it back before the test.

Try five real AP Biology questions free. When you sign up, every miss is saved and comes back in short practice timed to your AP exam date.

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  1. 1. Ask or practice. Sugar guides you step by step and checks each answer.
  2. 2. Misses get saved. Anything you get wrong becomes a short review card.
  3. 3. They come back before the test. About 90 seconds each — then you're done for today.

Free 5-question AP Biology quiz

No signup. Tap an answer to see if you're right.

  1. 1. A cell is placed in a solution with a higher solute concentration than its cytoplasm. Water will:

  2. 2. Which process produces four genetically different haploid cells?

  3. 3. Two Aa parents are crossed. What fraction of offspring is expected to show the recessive trait?

  4. 4. About what percentage of energy passes from one trophic level to the next?

  5. 5. Which organelle is the main site of cellular respiration?

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Want the full unit list and 2-week plan? See the AP Biology guide