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Turn your biology notes into a practice test in minutes

Upload your class notes, slides or a photo of a textbook page and get multiple-choice, true/false or short-answer questions with explanations you can study from.

Create quizzes nowFree · No credit card required

Drop files here or browsePDF, DOCX, PPTX, text or photos of your notes · several files with Plus

Free account · 3 sets a month · Creates quizzes in seconds

How a biology test maker fits into exam prep

A biology test maker is most useful when it starts from the notes your instructor actually gave you. Cell biology, genetics and ecology courses cover many terms and processes, and a test built from your own slides matches what will appear on your exam.

Multiple-choice, true/false and short-answer formats
An explanation for every answer
Photos of textbook pages read with text recognition
Export to PDF or DOCX on paid plans

Example biology test questions with answers

Which organelle carries out aerobic cellular respiration in eukaryotic cells?Mitochondria. They contain the enzymes of the Krebs cycle and electron transport chain that produce most of the cell's ATP.

True or false: DNA replication is semiconservative.True. Each new double helix keeps one original strand and pairs it with a newly synthesized strand, as shown in the Meselson-Stahl experiment.

In a cross of two heterozygous pea plants (Aa × Aa), what fraction of offspring are expected to be homozygous recessive?One quarter (1/4). The Punnett square gives AA, Aa and aa in a 1:2:1 ratio, so aa is 1/4.

What is the main function of the enzyme catalase?It breaks down hydrogen peroxide into water and oxygen. This keeps toxic hydrogen peroxide, a byproduct of metabolism, from building up in cells.

Why do mature mammalian red blood cells lack a nucleus?The nucleus is expelled during development, which leaves more room for hemoglobin and increases oxygen-carrying capacity.

Generate the full set

Three question types

Multiple-choice, true/false and short-answer questions cover terms, processes and diagrams from your course material.

Explanations for every answer

Each question comes with a short explanation, so a wrong answer becomes a lesson on why the right one is correct.

Works with your materials

Upload PDFs, DOCX or PPTX files, plain notes, or photos of pages read with text recognition.

How it works

Upload your material

Add lecture notes, slides, a chapter PDF or a photo of a page from your biology textbook.

Choose the test

Pick the question types and how many questions you want for the topic you are studying.

Take the test and review

Answer in your browser, read the explanations, then retry the questions you missed.

DeckOwl reads your uploaded material and writes questions tied to it, including multiple-choice, true/false and open questions. Every answer includes an explanation, so the test doubles as a review session rather than only a score.

For the best results, answer each question before checking the explanation, then come back to missed questions after a day or two. Spaced repetition on the paid plans helps the process and cell cycle details stay in memory through the semester.

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Frequently asked questions

How many practice questions should I make for a biology unit?

Aim for roughly one question per key term, process or diagram in the unit, then add more on the topics you miss. Retesting the weak areas after a few days will teach you more than a longer first test.

How do I study biology test questions effectively?

Answer each question from memory before reading the explanation, and write down the reasons behind wrong answers. Return to missed questions after a day or two, since spacing your review makes the material stick.

Can I export biology quizzes to Moodle or QTI?

Yes, QTI 2.1 and Moodle XML export are included in the Pro plan. PDF, DOCX, Anki and CSV exports are part of the Plus plan at $99.90/year or $9.99/month.

Is there a free plan?

Yes, the free plan includes 3 generations per month and studying in the browser, but exports require a paid plan. Students get 40% off with a school email, and no credit card is needed to start.

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Keep exploring the topic

Review the main ideas visually or practice recalling them.