ScienceThe StorytellerIntermediate
Cellular Physiology and Nutrition, a free science course on Tomo

Cellular Physiology and Nutrition

Explore the cellular machinery that turns nutrients into energy, muscle, and cognition. Learn how mitochondria generate ATP, how hormonal switches dictate tissue repair, and how organ systems coordinate metabolic flux.

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

A short one: 12 levels across 2 sections, about 24 minutes end to end, roughly 5 days at five minutes a day. It moves through The Cellular Engine: From Fuel to Tissue and Systemic Regulation: Transport, Filtration, and Defense. It assumes you already know the basics.

12 bite-size levelsAbout 5 minutes each

Free forever · No credit card · iPhone & Android

Mito the Meerkat, the guide who teaches the Cellular Physiology and Nutrition course
Cellular Physiology and Nutrition
with Mito the Meerkat
12
Levels
2
Sections
5
Min/day
What you'll learn

Key ideas in Cellular Physiology and Nutrition

  • Electron flow pumps protons into the intermembrane space to create an electrochemical gradient.
  • Protons rushing back across the inner membrane force the ATP synthase stalk to rotate like a turbine.
  • Mechanical rotation changes the catalytic site shape to press ADP and phosphate into ATP.
  • B-vitamins yield no direct calories and cannot be combusted as metabolic fuel.
  • Niacin and riboflavin form the core structures of NAD+ and FAD electron shuttles.
  • Electron carriers extract high-energy electrons from digested macronutrients during catabolism.
  • Metabolic flexibility lets healthy cells smoothly toggle between burning fats and carbohydrates.
  • A low energy charge with high AMP activates AMPK to switch the cell toward fatty acid oxidation.
  • High cellular ATP and insulin signal the mitochondria to downregulate fuel burning and store excess.
  • Lactate is rapidly cleared and used as a high-affinity fuel by cardiac muscle and the brain.
  • Monocarboxylate transporters shuttle lactate to adjacent oxidative fibers for conversion to pyruvate.
  • Uncoupling proteins create a leak allowing protons to bypass ATP synthase entirely.
  • Dissipating the proton motive force releases energy as non-shivering thermogenesis rather than ATP.
  • Oxygen and fuel consumption rise dramatically even while chemical ATP synthesis remains low.
  • Insulin's main muscle action in protein metabolism is anti-catabolic: it blunts proteolysis
  • Insulin moves GLUT4 transporters to the membrane to clear glucose, not build new protein
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 Cellular Physiology and Nutrition 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.

Unlocking the Cellular Turbine

When those trapped protons rush back through ATP synthase, what happens next?

Get it right to open this lesson and 11 more in the app.

Course map

How to learn Cellular Physiology and Nutrition, step by step

Go in order. 12 short levels across 2 sections, about 24 minutes in all, five minutes a day.

  1. 1

    The Cellular Engine: From Fuel to Tissue

    • Mitochondrial Bioenergetics and ATP Generation
    • Metabolic Signaling, mTOR, and Muscle Remodeling
  2. 2

    Systemic Regulation: Transport, Filtration, and Defense

    • Gas Exchange, Electrolytes, and the Renal Osmotic Engine
    • Fueling the Mind and Immune Defenses

2 sections · 4 units · 12 levels. Built to play, not to enroll.

Questions

Questions about Cellular Physiology and Nutrition

  1. How do I learn Cellular Physiology and Nutrition?

    Go in order: start with The Cellular Engine: From Fuel to Tissue, then Systemic Regulation: Transport, Filtration, and Defense. On Tomo that's 12 short levels, about 24 minutes in all, played five minutes a day. Start free and play the first level in under a minute.

  2. Is there a Duolingo-style app for Cellular Physiology and Nutrition?

    Yes. Tomo works like Duolingo: short daily lessons, streaks and quick quizzes. Cellular Physiology and Nutrition is one of its free courses, and you can type any other topic to get a course of your own.

  3. Is the Cellular Physiology and Nutrition course free?

    Yes. Cellular Physiology and Nutrition is playable on Tomo's free plan, which doesn't expire. No credit card, no waitlist. Download the app and start your first lesson.

  4. How long does it take to learn Cellular Physiology and Nutrition?

    12 levels across 2 sections, about 24 minutes of play in total. It's built for five minutes a day, so you finish it a little at a time instead of all at once.

  5. Do I need any background to start Cellular Physiology and Nutrition?

    No. It's pitched at an intermediate level, so it starts where you are and builds up. If you can tap a phone, you can start.

New

Tomo is in ChatGPT

Tomo is also a ChatGPT plugin: the same playable courses, built and played inside your chat.

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How it's taught

You pick the voice

This course
The Storyteller

Cellular Physiology and Nutrition is taught in the Storyteller style: every lesson is a story. 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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Start free

Start Cellular Physiology and Nutrition today.

Download Tomo, search Cellular Physiology and Nutrition, and play your first lesson in under a minute.