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Turn your biology notes into a definitions quiz

Upload a PDF, slides or notes and get multiple choice, true/false or short answer questions on the terms that matter, each with an explanation.

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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 definitions quiz works for biology

Biology exams often hinge on precise vocabulary, where osmosis and diffusion or mitosis and meiosis are easy to mix up. A biology definitions quiz built from your own lecture notes tests exactly the terms your instructor used, not a generic list.

Multiple choice, true/false and short answer formats
Explanations written for every question
Works with PDFs, slides, DOCX files and photos of pages
Students get 40% off with a school email

Example biology definitions quiz questions

What is osmosis?The passive movement of water across a semi-permeable membrane toward higher solute concentration. Only water moves, which is what separates it from general diffusion.

What is a codon?A sequence of three adjacent nucleotides in mRNA that specifies one amino acid or a stop signal. Because codons are read in triplets, the reading frame determines the protein made.

True or false: Mitochondria are the site of photosynthesis in plant cells.False. Photosynthesis occurs in chloroplasts, while mitochondria carry out cellular respiration.

What is an allele?One of two or more alternative forms of a gene found at the same locus on a chromosome. Different alleles produce variation in a trait.

What is homeostasis?The maintenance of a stable internal environment despite external changes. Negative feedback loops are the main mechanism that returns a variable to its set point.

Generate the full set

Quiz questions from your material

Upload a PDF, slides, DOCX, plain text or a photo of a page, and get multiple choice, true/false or short answer questions.

Explanations for every answer

Each question comes with a short explanation, so a wrong answer teaches you the definition instead of just marking it wrong.

Export when you need it

The free plan studies in the browser. Plus adds PDF and DOCX export, and Pro adds QTI 2.1 and Moodle XML for course platforms.

How it works

Upload your notes

Add a PDF, DOCX, PPTX, text file or photo of a page.

Choose a question type

Pick multiple choice, true/false or short answer for your quiz.

Answer and review

Work through the quiz and read the explanation for each definition you missed.

DeckOwl reads your PDF, slides or notes and writes questions that target the defined terms, then explains the correct answer so you can see why the other options fail. Free accounts get 3 generations a month and can study in the browser.

Paid plans remove the monthly cap and add exports to PDF, DOCX and Anki, so you can print a quiz or move the terms into spaced repetition.

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Frequently asked questions

How many definitions should I include in one biology quiz?

Ten to twenty terms is a manageable set for a single session and keeps the explanations focused. Start with the terms your instructor emphasized in class.

What is the best way to study biology definitions?

Write each term in your own words, then check it against the textbook definition. Recalling the definition from memory before you look at the answer works better than rereading.

Can I export a biology quiz to PDF?

Yes, PDF and DOCX export are included in the Plus plan, which is $99.90 a year or $9.99 a month. The free plan lets you study the quiz in the browser without exporting.

Does DeckOwl require a credit card to start?

No. You can start on the free plan without a credit card and get 3 generations per month.

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Review the main ideas visually or practice recalling them.