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Turn your biology notes into a quiz you can take today

Upload a chapter, lecture deck or photo of your notes and get multiple-choice, true/false or short-answer questions with explanations.

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

Why a custom biology quiz beats a generic one

A chapter on cellular respiration, three lecture decks and a messy page of notes usually means no quiz at all. DeckOwl works as a biology quiz website for that gap, building practice questions from the exact material you already have.

Questions that follow your instructor's slides and chapter
Multiple-choice, true/false and short-answer formats
Explanations that show why the right answer is right
Free browser study with 3 generations per month

Example biology quiz questions

Which organelle carries out most of the aerobic respiration in eukaryotic cells?The mitochondrion. It runs the citric acid cycle and oxidative phosphorylation, producing most of the cell's ATP.

True or false: DNA replication is semiconservative.True. Each new double helix keeps one original strand and one newly synthesized strand, as the Meselson-Stahl experiment showed.

What is the net ATP yield of glycolysis per glucose molecule?2 ATP. The investment phase uses 2 ATP and the energy-harvesting phase produces 4, so the net gain is 2.

Why do mature mammalian red blood cells lack a nucleus?The nucleus is expelled to make room for hemoglobin, which maximizes the cell's capacity to carry oxygen.

In a monohybrid cross of two heterozygous (Aa) parents, what genotype ratio appears in the offspring?1:2:1 (AA:Aa:aa). Each parent passes either allele with equal probability, which gives this Punnett square result.

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Questions from your material

Upload PDFs, DOCX, PPTX, plain text or photos of pages and get questions based on what your course actually covers.

Explanations for every answer

Each multiple-choice, true/false or short-answer question includes an explanation, so a wrong answer still teaches you something.

Export when you need it

Plus adds PDF and DOCX export, and Pro adds QTI 2.1 and Moodle XML for learning management systems.

How it works

Upload your biology material

Add a chapter PDF, lecture slides, typed notes or a photo of a textbook page.

Choose the question type

Pick multiple-choice, true/false or open questions, then generate the quiz.

Take the quiz and review

Answer in the browser, read the explanations, and retake the questions you missed.

DeckOwl does not host a library of prewritten biology quizzes. Ready-made sets rarely match your syllabus or your instructor's emphasis, so the tool generates one from the chapter or slides you are studying.

Retrieval practice works best when questions come from the readings you will be tested on. Reviewing explanations for missed items shows which concepts, such as enzyme function or meiosis, need another pass.

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Frequently asked questions

How many questions should a biology quiz have for a unit exam?

A 20 to 30 question quiz covers a typical unit well enough to find weak spots across several sittings. For a single lecture, 10 questions is usually enough to check recall before moving on.

Which biology topics work best for AI-generated quizzes?

Topics with defined terms and clear cause and effect, such as cell structure, photosynthesis, genetics and the nervous system, convert well into quiz items. Uploading the actual lecture slides or chapter keeps the questions aligned with your course.

Can I export a biology quiz to Moodle?

Moodle XML export is included on the Pro plan, which also supports QTI 2.1 export. Plus includes PDF and DOCX export, while the free plan lets you study and take quizzes in the browser.

Is there a free option for a biology quiz website?

The free plan includes 3 generations per month and browser study, and no credit card is needed to start. Students with a school email can get 40% off Plus.

Generate free quizzes

Keep exploring the topic

Review the main ideas visually or practice recalling them.