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Turn your biology chapters into review flashcards in minutes

Upload the PDFs, slides, notes or photos you already study from. DeckOwl writes the flashcards and schedules reviews so the material sticks before the exam.

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

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Why build your own biology review deck

Before a biology exam the material piles up fast: cell respiration, DNA replication, genetics and ecology all compete for the same week. A biology review flashcards set built from your own lectures and textbook keeps the terms your instructor emphasized front and center, instead of a generic deck that covers different material.

Flashcards written from your own lecture slides, chapters and notes
Cards for vocabulary, ordered processes and cause-and-effect relationships
Spaced repetition that brings back the cards you keep missing
Quizzes and mind maps from the same material when you want a different way to study

Example biology review flashcards

What is the net ATP yield of glycolysis per glucose molecule?2 ATP net, because 4 ATP are produced and 2 are spent in the energy investment steps.

Which organelle carries out oxidative phosphorylation in eukaryotic cells?The mitochondrion, where the electron transport chain and ATP synthase sit in the inner membrane.

What does the Hardy-Weinberg equation describe?Allele and genotype frequencies in a population that is not evolving, written as p squared + 2pq + q squared = 1.

What does helicase do during DNA replication?It unwinds the double helix by breaking the hydrogen bonds between paired bases.

How do mitosis and meiosis differ in the number of daughter cells produced?Mitosis produces two genetically identical diploid cells, while meiosis produces four haploid gametes.

Generate the full set

Built from your own material

Upload PDFs, DOCX, PPTX files, plain text notes or photos of textbook pages. The cards match the lectures and chapters you were actually assigned.

Spaced repetition

Cards you miss come back sooner and cards you know come back later, so you spend study time on the terms that need it.

Quizzes and mind maps too

Turn the same notes into multiple choice, true/false or short answer questions with explanations, or into a mind map of how topics connect.

How it works

Upload your biology material

Add a lecture slide deck, a chapter PDF or a photo of your notes. Plain text works too.

Generate your flashcards

DeckOwl reads the material and writes question and answer cards for the key terms, processes and concepts.

Review on a schedule

Study in the browser with spaced repetition, and fix any card that is wrong or unclear before your next session.

Ready-made decks can be useful for a quick check, but they rarely match the wording, diagrams or chapter order of your course. Uploading your own PDFs, slides or notes gives you cards that line up with what will be on the test.

Spaced repetition then does the scheduling work. Each session focuses on the cards you find hardest, so a single review week can cover a full unit without rereading every page.

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Frequently asked questions

How should I split biology review flashcards?

A focused deck for each chapter or unit works better than one large deck, because you can finish each topic before exam day. Keep cards for the terms your instructor stressed in a separate set so they get extra reviews.

Which biology topics work best as flashcards?

Vocabulary, step-by-step processes such as glycolysis or mitosis, and short cause-and-effect relationships work well. Long diagrams and multi-step reasoning are often better as quiz questions or mind maps.

Is the free plan enough for biology review?

The free plan includes 3 generations per month and studying in the browser. Exports to PDF, DOCX, Anki and CSV are part of the Plus plan, which is $39 per year or $7.99 per month.

Can I move my biology flashcards into Anki?

Yes, on the Plus plan you can export to Anki and CSV. The free plan keeps your cards in the browser without exports.

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Keep exploring the topic

Review the main ideas visually or practice recalling them.