Mitochondrion

Splashery stretches a drumhead over this Splash's outline, twelve inches across, and finds the ways it can ring. Its lowest is 535.2 Hz, 39 cents sharp of C5. The next fifteen are its overtones, and each one draws its own figure: sand gathers on the lines that stay still.

Tap it to power it up. Switch off the Cutaway in the Splash tab to see it whole.

A mitochondrion is a tiny part inside a cell, often called the powerhouse of the cell. It uses oxygen to turn the sugar from food into ATP, the small molecule that carries energy to every part of the cell. Its inner skin is folded into ridges called cristae, which gives it lots of room to work.

The top is cut away to show the ridges. Tap it and light runs along them, it swells, and bright sparks of ATP pop out and drift off. Mitochondria even have their own DNA, which humans usually inherit from their mothers. Cutaway opens or closes the view into the cristae.

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