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Turn your MCAT prep guide into online practice questions

DeckOwl reads the official MCAT prep material you already own and writes multiple-choice, true/false and short-answer questions, each with an explanation.

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Practice questions from the guide you already own

DeckOwl can't hand you the official MCAT questions, since those belong to the publisher, but you can create online practice questions from the official guide by uploading the copy you already own.

Questions stay tied to the sections of the guide you upload, so you can practice one topic at a time.
Explanations show the reasoning behind each correct answer, not just the letter.
Short-answer prompts make you explain concepts in your own words before you check.
Plus exports to PDF, DOCX and Anki, so you can print sets or move cards into your existing routine.

Example MCAT biology, chemistry and physics practice questions

In a Michaelis-Menten plot, what does Vmax represent?The maximum reaction rate when the enzyme is saturated with substrate. Once every active site is occupied, adding more substrate no longer speeds the reaction.

Which lens shape corrects farsightedness?A convex (converging) lens. It bends light inward so the eye can focus the image on the retina.

What is the net ATP yield from glycolysis alone, per glucose?2 ATP, since 4 are produced and 2 are invested. It also yields 2 NADH, which feed later ATP production.

True or false: oxidative phosphorylation produces most of the ATP from aerobic glucose metabolism.True. The electron transport chain and chemiosmosis generate far more ATP than glycolysis or the citric acid cycle.

Why does adding heat to an endothermic reaction shift equilibrium toward products?Heat acts as a reactant in an endothermic reaction. Adding it pushes the equilibrium forward to consume the extra energy.

Generate the full set

Built from your own guide

Upload the PDF, slides or notes you already have, and questions are written from that exact material.

Explanations for every answer

Each multiple-choice, true/false or short-answer question includes an explanation of why the correct answer holds.

Mix question types

Choose multiple choice, true/false or open questions for each set, so you can drill recall and reasoning separately.

How it works

Upload your prep material

Add a PDF, DOCX, PPTX, text notes or photos of pages. Text in images is read with recognition.

Choose question types

Pick multiple choice, true/false or short answer, and set how many questions you want from each section.

Practice and review

Answer in the browser, read the explanations, and return to missed questions as your review cycle continues.

Upload a PDF, DOCX, PPTX, plain-text notes or photos of pages, and the text is read for you. Choose multiple choice, true/false or short answer questions, and each one comes with an explanation so you learn why an answer is right or wrong.

Check generated questions against your guide before relying on them, since the AI works only from the material you provide. Free accounts get 3 generations a month to study in the browser, while Plus adds unlimited generations and PDF or DOCX export.

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Frequently asked questions

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

Work through questions by topic soon after reading each section, then revisit the ones you missed after a few days. Explaining why each wrong answer fails builds the reasoning the exam tests.

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

A focused session of 20 to 40 questions with review time is a practical target for most students. Spacing sessions across the week usually helps more than one very long block.

Can I get the official MCAT questions without my own copy of the guide?

No, DeckOwl works from material you upload, so you need your own copy of the prep guide or your own notes. Upload it and the questions are generated from that text.

Is exporting questions to Word or PDF included?

Exports are paid features, so PDF and DOCX export come with Plus at $39/year or $7.99/month. The Free plan lets you study in the browser with 3 generations per month.

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Keep exploring the topic

Review the main ideas visually or practice recalling them.