ScienceThe ProfessorIntermediate
MCAT Science and Reasoning, a free science course on Tomo

MCAT Science and Reasoning

Bridge undergraduate coursework and the MCAT with high-yield conceptual models across biochemistry, physics, chemistry, and behavioral science. Master passage deconstruction, experimental reasoning, and the interdisciplinary links required to score 510+.

Like Duolingo, but for MCAT Science and Reasoning. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.

26 levels across 3 sections, about 52 minutes end to end, roughly 10 days at five minutes a day. It moves through Deconstructing Passages and Physical Principles, Biomolecular Architecture and Biochemical Pathways, and Behavioral Foundations and Strategic Integration. It assumes you already know the basics.

26 bite-size levelsAbout 5 minutes each

Free forever · No credit card · iPhone & Android

Micah the Meerkat, the guide who teaches the MCAT Science and Reasoning course
MCAT Science and Reasoning
with Micah the Meerkat
26
Levels
3
Sections
5
Min/day
What you'll learn

Key ideas in MCAT Science and Reasoning

  • Passage stems reward tracing the independent variable to the measured dependent response.
  • Knowing textbook glycolysis enzymes matters less than tracking how the drug perturbs product output.
  • MCAT questions evaluate whether a manipulated input caused an observed downstream shift.
  • A vehicle control isolates the carrier solvent from the active solute's effect.
  • Negative controls establish baseline readouts when the active agent is absent.
  • Positive controls verify that the assay reagent is functional and sensitive enough.
  • Reading for directional shifts like higher Km or lower Vmax is faster than memorizing values.
  • Questions refer back to specific rows, making pre-memorization a waste of testing time.
  • Noticing relative order across mutants predicts catalytic efficiency shifts immediately.
  • 'Most supported' stems require an explicit causal link to passage figures or text.
  • Plausible outside medical facts serve as tempting trap answers if unmentioned in data.
  • Direct passage evidence outranks unverified biological background claims every time.
  • Titrating pH alters active site protonation states to reveal acid-base catalysis.
  • Replacing water with heavy D2O tests proton transfers via kinetic isotope effects.
  • Swapping buffer counterions like Na+ for K+ rarely alters acid-base catalytic mechanisms.
  • Rapid exhalation blows off dissolved CO2, decreasing blood partial pressure
Why not just Google it

You've tried the other tabs

Wikipedia

Thirty open tabs. Four facts you actually kept.

YouTube

You watched. You nodded. By Sunday it was gone.

ChatGPT

One answer, then back to scrolling.

Online courses

Eight weeks. You meant to finish. You didn't.

Tomo gives MCAT Science and Reasoning the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.

Try a question

Here's what playing it feels like

A real question from this course. Take your best guess.

Mapping Inputs to Experimental Outcomes

A passage introduces an unstudied kinase blocker in tumor cells. What should you focus on first?

Get it right to open this lesson and 25 more in the app.

Course map

Where MCAT Science and Reasoning takes you

  1. 1

    Deconstructing Passages and Physical Principles

    • Translating Dense Passages into Testable Hypotheses
    • Chemical Equilibria and Acid-Base Physiology
    • Fluids, Circuits, and Biomechanics
  2. 2

    Biomolecular Architecture and Biochemical Pathways

    • Enzyme Kinetics and Metabolic Flux
    • Molecular Genetics and Laboratory Techniques
    • Organic Reaction Mechanisms in Biological Systems
  3. 3

    Behavioral Foundations and Strategic Integration

    • Psychological, Social, and Biological Foundations of Behavior
    • Experimental Design, Error Analysis, and Test Strategy

3 sections · 8 units · 26 levels. Built to play, not to enroll.

How it's taught

You pick the voice

This course
The Professor

MCAT Science and Reasoning is taught in the The Professor style: clear, structured, thorough. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.

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