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Turn your HESI biology notes into flashcards with AI

Upload your biology slides, notes or PDFs and get flashcards with spaced repetition. No credit card needed to start.

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 build your own HESI biology cards

Public sets labeled for HESI biology are a common starting point, but they rarely match what your program covers and they can be out of date. A better route is turning your own slides, textbook chapters or photographed notes into HESI biology flashcards that follow your syllabus.

Cards are drawn from the exact pages or slides you upload, not a generic topic list.
Photos of pages are read with text recognition, so you do not need a typed copy first.
Spaced repetition schedules reviews around what you forget, not a fixed calendar.
Free accounts need no credit card, and students get 40% off with a school email.

Example HESI biology flashcards

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.

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

What does each turn of the Krebs cycle yield besides CO2?Three NADH, one FADH2 and one GTP (or ATP) per acetyl-CoA entering the cycle.

What does the sodium-potassium pump move, and at what ratio?It moves 3 Na+ out and 2 K+ into the cell per ATP hydrolyzed, helping maintain the resting membrane potential.

What phenotype do the alleles IA and IB produce together?AB blood type, because codominance means both A and B antigens are expressed on the red cell surface.

Generate the full set

Works with your own material

Upload PDFs, DOCX or PPTX files, plain text notes, or photos of textbook pages. Cards follow what your instructor actually covers.

Spaced repetition built in

Cards you miss come back sooner, and the ones you know fade to later reviews. You spend time on the biology you have not mastered yet.

Study in the browser

The free plan includes 3 generations per month and browser study with no exports. Plus adds unlimited generations and PDF, DOCX, Anki and CSV export.

How it works

Upload your material

Add a lecture PDF, slide deck, notes file or a photo of a page from your biology review book.

Generate your flashcards

DeckOwl reads the text and creates question-and-answer cards on the terms and processes in your material.

Review on a schedule

Study in short daily sessions and let spaced repetition decide which cards need another look.

Upload a PDF, DOCX, PPTX, plain text file or image, and DeckOwl generates flashcards you can study in the browser on the free plan. Cards use spaced repetition, so the terms you miss return sooner than the ones you already know.

Plus adds exports to PDF, DOCX, Anki and CSV, so you can print a review sheet or move your cards into another app for studying.

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Frequently asked questions

How many flashcards should I make for HESI biology?

Aim for one card per testable concept rather than a fixed number, so a chapter on cellular respiration might yield 15 to 25 cards. Prioritize terms your instructor emphasized and processes you have to explain in order.

How often should I review HESI biology flashcards?

Short daily sessions of 20 to 30 minutes work better than long cram sessions before the exam. Spaced repetition brings each card back just before you would be likely to forget it.

Can I export my flashcards to Anki or PDF?

Yes, but exports are a paid feature: PDF, DOCX, Anki and CSV are included with Plus at $39/year or $7.99/month. Students get 40% off with a school email, and the free plan lets you study in the browser.

Does DeckOwl work with photos of my textbook pages?

Yes, photos of pages are read with text recognition, so you can upload images alongside PDFs, slides or notes. You can start without a credit card.

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Keep exploring the topic

Review the main ideas visually or practice recalling them.