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Take a biology quiz in your browser, built from your own notes

Upload your biology notes, lecture slides or textbook PDFs. DeckOwl writes multiple-choice, true/false and short-answer questions with explanations, so there is nothing to download first.

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

Biology quizzes from your own material

Most students who search for a biology quiz app want practice that matches their own course, not a generic question bank. DeckOwl reads your notes or slides and writes questions from them, so the quiz tracks the chapter your instructor is testing.

Quizzes are generated from your own biology notes, slides or textbook chapters.
Each multiple-choice, true/false or short-answer question includes an explanation.
Studying happens in the browser with no install, and the free plan allows 3 generations per month.
Plus and Pro add exports, and students get 40% off with a school email.

Example biology quiz questions with answers

Which organelle is the main site of aerobic respiration in eukaryotic cells?Mitochondria, because their inner membrane holds the electron transport chain that produces most of the cell's ATP.

True or false: mitosis produces four genetically distinct daughter cells.False, because mitosis produces two genetically identical daughter cells, while meiosis produces four genetically distinct gametes.

In DNA, which base pairs with adenine?Thymine, since adenine and thymine form two hydrogen bonds, while guanine and cytosine form three.

In photosynthesis, which molecule is split to release oxygen?Water, because the light-dependent reactions split H2O to supply electrons and release O2 as a byproduct.

What does a dominant allele do in a heterozygous genotype?It determines the phenotype shown, because it masks the effect of the recessive allele.

Generate the full set

Built from your material

Upload PDFs, DOCX files, PPTX slides, plain text or photos of pages, and the quiz covers what your class actually teaches.

Three question types

Multiple-choice, true/false and short-answer questions, each with an explanation so you learn why an answer is right.

Browser study on the free plan

The free plan includes 3 generations per month and studying in the browser. Exports need a paid plan.

How it works

Upload your biology material

Add a PDF, slide deck, document or photo of your notes. Text recognition reads images too.

Choose question types

Pick multiple-choice, true/false or short answer, then generate the quiz in one step.

Take the quiz and review

Answer in the browser, read the explanation for every miss, and retry the questions you got wrong.

You can upload PDF, DOCX, PPTX, plain text or photos of textbook pages. Each generated question comes with an explanation, which makes wrong answers useful for review rather than just a score.

DeckOwl runs in your browser, so there is no separate app to install. The free plan includes 3 generations per month. Exporting to PDF or DOCX requires Plus at $99.90/year or $9.99/month, and QTI 2.1 or Moodle XML export requires Pro at $14.99/month. Students get 40% off with a school email.

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Frequently asked questions

How many questions should a biology quiz have for one chapter?

Most single-chapter biology units work well with 15 to 25 questions. Cumulative exams benefit from longer quizzes that revisit earlier units.

What is the best way to study biology with practice quizzes?

Answer from memory before checking your notes, then read the explanation for every wrong answer. Retake missed questions a day or two later to strengthen recall.

Do I need to install anything to use DeckOwl?

No. You can study in the browser on the free plan, which includes 3 generations per month. Exporting to PDF or DOCX requires Plus.

Can I export biology quizzes to Moodle or QTI?

Yes, QTI 2.1 and Moodle XML export are available on the Pro plan at $14.99 per month.

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Keep exploring the topic

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