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Practice MCAT tests built from the material you already study

DeckOwl reads your notes, slides or PDFs and writes multiple-choice, true/false and short-answer questions, each with an explanation of why the answer is right.

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How an MCAT practice test app fits into your prep

Most MCAT review happens with a textbook, a course outline and a pile of your own notes, so the most useful practice questions are the ones drawn from that material. DeckOwl works as an MCAT practice test app by generating questions from whatever you upload, rather than from a ready-made bank.

  • Upload a chapter or set of lecture slides and generate a quiz from that exact content
  • Mix multiple-choice, true/false and short-answer questions in the same review session
  • Read the explanation after each answer to see which concept you missed
  • Use spaced repetition on Plus to bring back the questions you got wrong
Example MCAT practice questions with answers
Which organelle is the site of oxidative phosphorylation in eukaryotic cells?The inner mitochondrial membrane, because the electron transport chain and ATP synthase are embedded there.
In a Michaelis-Menten enzyme, what does Km represent?The substrate concentration at which the reaction rate is half of Vmax, so a lower Km indicates higher apparent affinity.
At constant temperature, what happens to the pressure of a fixed amount of ideal gas when its volume is halved?Pressure doubles, because Boyle's law says pressure and volume are inversely proportional at constant temperature.
Which amino acid is the most common target of phosphorylation by kinases in eukaryotes?Serine, which is phosphorylated far more often than threonine or tyrosine, so it appears most often in kinase questions.
Which part of the nephron is the primary site of glucose reabsorption?The proximal convoluted tubule, where SGLT transporters reabsorb nearly all filtered glucose under normal blood glucose levels.
Generate the full set

Questions from your own material

Upload the chapters, lecture slides or notes you are reviewing for the MCAT, and get practice questions that match what you actually studied.

Explanations for every answer

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

Review that repeats at the right time

Paid plans add spaced repetition, so questions you miss come back before you forget them.

How it works

Upload your study material

Add a PDF, DOCX, PPTX, plain text file or a photo of a page. Photos are read with text recognition.

Choose the question type

Pick multiple-choice, true/false or short answer, then generate a set from the content you uploaded.

Answer, check and review

Work through the set in your browser, read the explanations, and redo the questions you missed.

DeckOwl runs in your browser and does not include a built-in library of official MCAT questions. What it does is turn your pages into quizzes, so you can test yourself on biochemistry, physics or behavioral science right after you read them.

Paid plans add exports to PDF and DOCX for printing or sharing with a study group, and Pro adds QTI 2.1 and Moodle XML for course platforms.

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Frequently asked questions

How many practice questions should I do each day for the MCAT?

There is no single right number. Many students keep daily sets short enough to review every explanation, then add longer timed sections as the test date gets closer.

Should I focus on one MCAT section at a time or mix them?

Early in your prep, studying one section at a time helps you learn the content. Closer to the exam, mixed sets are better practice because the real test does not announce topics in advance.

Can DeckOwl make practice questions from MCAT passages I have saved?

Yes, if the passages are in a PDF, DOCX, PPTX, text file or a photo of the page. DeckOwl then writes multiple-choice, true/false or short-answer questions with explanations from that text.

Is DeckOwl free to use for MCAT review?

The Free plan includes 3 generations per month and browser study without exports. Plus costs $39 per year or $7.99 per month for unlimited generations and exports, and students get 40% off with a school email.

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Review the main ideas visually or practice recalling them.