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A biology flashcards app made from your own course material

Upload a PDF, slide deck, set of notes or a photo of a textbook page, and DeckOwl produces flashcards you review with spaced repetition.

Create flashcards nowFree · No credit card required

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

Free · First set needs no signup · Creates flashcards in seconds

Why a biology flashcards app beats rereading notes

Cell respiration, enzyme structure and the stages of mitosis fill most intro biology exams, and a biology flashcards app lets you drill them a few minutes a day instead of cramming the night before.

Upload PDFs, DOCX, PPTX, plain text or photos of pages
Get flashcards with spaced repetition in one pass
Study in the browser on the free plan with 3 generations per month
Export to Anki or CSV on the Plus plan

Example intro biology flashcards

Which organelle produces most of a eukaryotic cell's ATP?The mitochondrion, through oxidative phosphorylation on its inner membrane.

What does RuBisCO do in the Calvin cycle?It catalyzes the first step of carbon fixation, attaching CO2 to RuBP.

What happens in prophase I of meiosis that does not occur in mitosis?Homologous chromosomes pair up and exchange segments by crossing over.

What is the net ATP yield of glycolysis per glucose molecule?2 ATP, since 4 are produced and 2 are used, plus 2 NADH.

How does a codon differ from an anticodon?A codon is a three-base mRNA sequence that specifies an amino acid; an anticodon is the complementary three-base sequence on tRNA.

Generate the full set

Works from your material

Drop in lecture PDFs, PPTX slides, DOCX handouts, plain notes or photos of pages. Text recognition reads images too.

Spaced repetition built in

Cards you miss come back sooner, and the ones you know fade into longer intervals so review time goes where it counts.

Quizzes and mind maps too

Switch from flashcards to multiple choice, true/false or short answer quizzes with explanations, or map how topics connect.

How it works

Upload your biology material

Add the chapter PDF, lecture slides or photographed notes for the unit you are studying.

Review the generated cards

Check the fronts and backs against your course, then edit any card that is too broad or missing a detail.

Study on a daily schedule

Work through the due cards each day in the browser, and let spaced repetition set how often each one returns.

Rereading highlighted notes feels productive but rarely tests recall. Writing each term as a question and answering from memory is what moves biology facts into long-term memory, and spaced repetition makes that practice happen on a schedule.

If your course changes textbooks or your professor posts new slides each week, generate cards from the new material as it arrives so the deck always matches what you are being tested on.

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AI Flashcard Maker for Any Study Material

Turn PDFs, slides, notes and photos into spaced repetition flashcards. Free to start.

AI Flashcard Study App

Turn your PDFs, slides and notes into flashcards with spaced repetition.

AI-Generated Flashcards App

Turn your own notes and PDFs into spaced repetition flashcards with AI.

AI-powered flashcards app

Turn PDFs, slides and notes into spaced repetition flashcards with AI.

Frequently asked questions

How many flashcards should I make for an intro biology exam?

Aim for one card per term, process or structure your professor emphasizes, usually 80 to 150 cards for a full semester. Start with the lecture objectives and cut any card you never get wrong after several reviews.

What makes a good biology flashcard?

Write the front as a specific question, such as what the Calvin cycle produces, and keep the back to one or two sentences. Cards that ask for a process or a comparison work better than single words.

Can I export my biology flashcards to Anki?

Yes, exporting to Anki is included in the Plus plan, which costs $39 per year or $7.99 per month. The free plan lets you study in the browser but does not include exports.

Is there a free plan to try it?

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

Generate free flashcards

Keep exploring the topic

Review the main ideas visually or practice recalling them.