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Chemistry

The Biochemistry of ATP Synthesis in Oxidative Phosphorylation

Quick fact

In oxidative phosphorylation, about 90% of the ATP in your body is made by a rotary motor called ATP synthase, which spins at roughly 50 revolutions per second, producing more than 100 ATP molecules every second in a single cell.

Why this is interesting

You’ve heard that mitochondria are the powerhouse of the cell, but how does a tiny organelle actually manufacture the molecule that powers your every thought and movement? The answer involves a microscopic rotary engine and a dam-like gradient of protons.