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Turn your Khan Academy MCAT notes into a practice test

DeckOwl builds practice questions from the material you already have, so you can test yourself on the exact topics you studied.

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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 a custom practice test beats a generic one

After working through Khan Academy's videos and passages, the next step is an MCAT practice test that checks what actually stuck. A generic test covers topics you may not have studied yet, while a test built from your own notes focuses on the content in front of you.

Questions drawn only from the material you upload
Explanations for every answer, including the wrong ones
Flashcards with spaced repetition for memorizing terms and formulas
Export to PDF or DOCX on Plus, and to QTI or Moodle XML on Pro

Example MCAT biochemistry and chemistry practice questions

In a Michaelis-Menten plot, what does Vmax represent?The maximum reaction rate when the enzyme is saturated with substrate, because all active sites are occupied.

What does the Henderson-Hasselbalch equation relate?pH = pKa + log([A-]/[HA]), which links the pH of a buffer to the pKa and the ratio of conjugate base to weak acid.

In eukaryotic cells, where does the citric acid cycle take place?The mitochondrial matrix, because the cycle's enzymes are located there and it runs on acetyl-CoA from pyruvate.

If heat is added to an endothermic reaction at equilibrium, which way does the equilibrium shift?Toward the products, because heat acts like a reactant in an endothermic reaction, so adding it favors product formation.

What is a Type I error in hypothesis testing?Rejecting a true null hypothesis, a false positive, with probability equal to the chosen significance level alpha.

Generate the full set

Works from your own material

Upload PDFs, DOCX or PPTX files, plain-text notes, or photos of pages. Text recognition reads the photos.

Multiple-choice, true/false, and short answer

Each question comes with an explanation, so a missed item teaches you why the right answer is right.

Flashcards and mind maps too

Turn the same notes into spaced-repetition flashcards or a mind map for the science sections.

How it works

Upload your notes

Add the PDF, slides, or notes from your Khan Academy review. No credit card is needed to start.

Choose the question type

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

Take the quiz and review

Answer the questions, read the explanations for anything you missed, and regenerate from the weak topics.

Upload the chapters or handouts you are reviewing and DeckOwl writes questions with explanations for each answer. Repeating the quiz on a schedule, then reviewing the explanations for missed items, is a practical way to find gaps before test day.

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Frequently asked questions

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

Take a short quiz after finishing each topic rather than saving everything for the end. Read the explanation for every missed question, then retest that topic a few days later.

What topics should a biochemistry practice test cover for the MCAT?

Focus on enzyme kinetics, acid-base chemistry, metabolic pathways, and how they connect to physiology. Build the test from your own review notes so it matches the material you actually studied.

Can I export my MCAT practice test?

Free accounts study in the browser without exports. Plus includes PDF, DOCX, Anki, and CSV export, and Pro adds QTI 2.1 and Moodle XML.

Is there a free plan?

Yes. The free plan includes 3 generations per month, and you can start without entering a credit card. Students with a school email get 40% off paid plans.

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Keep exploring the topic

Review the main ideas visually or practice recalling them.