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Get a biology quiz from the notes you already have

Upload your lecture slides, PDF chapters or typed notes. DeckOwl writes multiple-choice, true/false and open questions with explanations, so you can check what you actually remember.

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 quiz beats a generic one

Your professor's chapter 9 slides rarely match a generic online quiz, so the most useful practice is a biology quiz built from those exact pages.

Questions match the exact topics on your syllabus or slides.
Multiple choice and true/false give quick checks before an exam.
Short-answer questions reveal gaps in your explanations of processes.
Explanations show why each answer is right, not just which one is.

Example high school biology quiz questions

Which organelle produces most of a cell's ATP through aerobic respiration?Mitochondria. The Krebs cycle and electron transport chain run in the mitochondria and yield most of the cell's ATP.

Which molecule carries amino acids to the ribosome during translation?tRNA (transfer RNA). Each tRNA has an anticodon that matches an mRNA codon and carries the matching amino acid.

True or false: osmosis moves water from a region of lower solute concentration to higher solute concentration.False. Water moves toward the side with higher solute concentration, which has lower water potential.

In a dihybrid cross of two heterozygous parents (AaBb x AaBb), what fraction of offspring show both dominant traits?9/16. Each gene gives a 3/4 chance of the dominant phenotype, and the two genes assort independently, so 3/4 x 3/4 = 9/16.

Which phase of mitosis is when sister chromatids separate and move to opposite poles?Anaphase. Cohesin is cleaved, which frees the sister chromatids so spindle fibers can pull them apart.

Generate the full set

Built from your material

Questions come from the pages you upload, so the quiz matches your course rather than a generic textbook.

Explanations for every answer

Each question includes a short explanation, so a wrong answer becomes a lesson on the spot.

Three question types

Multiple choice, true/false and short answer cover recognition and recall, the two skills biology exams test.

How it works

Upload your notes

Add a PDF, DOCX, PPTX, text file or photo of a page. Photos are read with text recognition.

Choose a question type

Pick multiple choice, true/false or short answer, or mix them in one quiz.

Take the quiz

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

Quizzing yourself is one of the most effective ways to study because each attempt to recall an answer strengthens it. Short questions on processes like cellular respiration or mitosis show you where your explanation breaks down.

If you have a printed handout, you can photograph it and generate questions from that page the same way as a typed file.

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Frequently asked questions

How often should I quiz myself on biology topics?

Short sessions spread across several days work better than one long cram session. Returning to the same material after a gap makes it easier to recall later.

Which question types help most for learning biology?

Mixing multiple choice with short-answer questions works well. Short answers make you explain processes such as respiration or DNA replication in your own words.

Can I export a biology quiz?

Yes. PDF and DOCX export is included in Plus at $99.90/year or $9.99/month, and QTI 2.1 and Moodle XML export is included in Pro at $14.99/month.

Is there a free plan?

Yes. The free plan includes 3 generations per month and studying in the browser, and no credit card is needed to start.

Generate free quizzes

Keep exploring the topic

Review the main ideas visually or practice recalling them.