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Turn your MCAT notes into a free practice test

Upload MCAT notes, slides or PDFs and get practice questions with explanations in minutes.

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Why a custom MCAT practice test beats a generic one

Most free practice sets are written for everyone, so they rarely match what your course or review book actually covered. A free MCAT practice test built from your own slides or notes focuses on the content you are responsible for.

  • Questions drawn only from the material you upload
  • Explanations that show the reasoning behind each answer
  • Multiple-choice, true/false and short-answer formats
  • Browser study on the free plan, with exports on paid plans
Example MCAT biology and chemistry practice questions
Which enzyme unwinds the DNA double helix during replication?Helicase. It breaks the hydrogen bonds between base pairs to separate the strands ahead of the replication fork.
What is the approximate pH of arterial blood?About 7.4, within a normal range of 7.35 to 7.45. The bicarbonate buffer system works to keep it in this narrow range.
At constant temperature and amount of gas, how does volume change when pressure doubles?Volume is halved. Boyle's law states that pressure and volume are inversely proportional when temperature and moles are fixed.
What is the net ATP yield from glycolysis per glucose molecule?2 ATP. Glycolysis uses 2 ATP in its early steps and produces 4, so the net gain is 2.
True or false: passive transport moves substances against their concentration gradient.False. Passive transport moves substances down their gradient without direct energy input, while moving against it requires active transport.
Generate the full set

Reads your own material

Upload PDFs, DOCX, PPTX, plain text or photos of pages. Text recognition handles scanned pages.

Multiple question types

Get multiple-choice, true/false or short-answer questions, each with an explanation of the correct answer.

Free to start

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

How it works

Upload your notes

Add a PDF, slide deck, document or a photo of a page from your MCAT review.

Choose a question type

Pick multiple choice, true/false or short answer for the set you want.

Take the test and review

Read each explanation, then return to the topics you missed.

DeckOwl reads PDFs, DOCX and PPTX files, plain text and photos of pages, then writes multiple-choice, true/false or short-answer questions. Each question comes with an explanation you can check against your source material.

Explanations matter more than the raw score. Reading why an answer is right or wrong shows you which concepts need another pass before test day.

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Frequently asked questions

How should I use practice tests when studying for the MCAT?

Take timed sections under realistic conditions, then review every explanation, including questions you guessed correctly. Track which topics keep appearing in your misses and revisit them before your next set.

Is it better to do many short practice sessions or a few long ones?

Short, frequent sessions usually help memory more than occasional marathon sessions. Spend as much time reviewing explanations as you spend answering questions.

Is DeckOwl free to use?

Yes, the free plan includes 3 generations per month and studying in the browser. Exporting to other formats requires a paid plan.

Which export formats are paid?

Plus includes PDF, DOCX, Anki and CSV export for $99.90/year or $9.99/month. Pro adds QTI 2.1 and Moodle XML export, and students get 40% off with a school email.

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Keep exploring the topic

Review the main ideas visually or practice recalling them.