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Turn your own MCAT notes into practice questions with AI

Upload lecture slides, review PDFs or photos of pages, and get multiple-choice, true/false and short-answer questions with explanations.

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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 custom questions beat a fixed question bank

Published question banks are a useful starting point, but MCAT practice questions written around your own lecture slides and review notes target the exact material you need to memorize. DeckOwl turns uploaded PDFs, slides, DOCX files or photos of pages into questions, each with an explanation.

Multiple-choice, true/false and short-answer formats
Explanations that show the reasoning behind each answer
Generate questions only from sections you choose
Free plan includes 3 generations per month with in-browser study

Example MCAT biochemistry practice questions

Which glycolysis enzyme is the main rate-limiting step and is inhibited by high levels of ATP and citrate?Phosphofructokinase-1 (PFK-1). High ATP and citrate signal that energy is plentiful, so the enzyme slows glycolysis.

In Michaelis-Menten kinetics, what does Vmax represent?The maximum reaction rate when all enzyme active sites are saturated with substrate. Adding more substrate cannot raise the rate beyond this point.

How does a competitive inhibitor change Km and Vmax?It increases the apparent Km and leaves Vmax unchanged. Enough substrate can outcompete the inhibitor for the active site.

Which Krebs cycle step directly reduces FAD to FADH2?Succinate to fumarate, catalyzed by succinate dehydrogenase. This enzyme is part of Complex II of the electron transport chain.

Why does a buffer resist pH change most effectively when pH is near its pKa?At pKa the weak acid and conjugate base are present in roughly equal amounts. Each can neutralize added acid or base.

Generate the full set

Built from your material

Questions come from the PDFs, slides, DOCX files or notes you upload, so they match the content you actually have to learn.

Explanations for every answer

Each question includes an explanation, so you learn why the correct answer is right and why the distractors are wrong.

Study where you are weakest

Flashcards with spaced repetition and mind maps sit alongside the questions, so you can review the same topics in different formats.

How it works

Upload your review material

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

Choose a question type

Pick multiple choice, true/false or short answer, then generate a set from the sections you select.

Practice and review

Answer in the browser, read the explanations, and return to the questions you missed.

Each set is built only from the material you upload, so the questions stay on the content in your course. If you already own a Jack Westin review book or PDF chapters, you can upload those pages and generate extra questions on the sections you miss most.

Paid plans remove the monthly limit and add exports to PDF, DOCX and Anki. Pro adds QTI 2.1 and Moodle XML export for instructors who run quizzes in a learning management system.

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Frequently asked questions

How many practice questions should I do in one MCAT study session?

Many students work through a focused set of 20 to 40 questions on one content area, then review every missed item. Mixing topics later in your prep helps test recall under exam-like conditions.

What is the best way to review wrong MCAT practice answers?

Read the explanation, write down the principle you misapplied, and add it to flashcards so you see it again. Retrying the same question a few days later shows whether the fix stuck.

Can I export the MCAT questions I generate?

Yes, but exports are paid features. PDF and DOCX export are included in Plus at $39/year or $7.99/month, and QTI 2.1 and Moodle XML export are available on Pro at $14.99/month.

Do I need a credit card to start?

No. The free plan gives you 3 generations per month and in-browser study without a credit card, and students get 40% off with a school email.

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