Biology / Unit 3 Bio 0554 short lesson, about 20 seconds
Chemiosmosis and ATP Synthase
Captions available
The idea
Chemiosmosis is hydrogen ions diffusing down their gradient through ATP synthase, a membrane protein that uses that flow to attach a phosphate to ADP.
In practice
Hydrogen ions built up by the electron transport chain rush back through ATP synthase, much like water through a dam's turbine.
Where people slip
ATP synthase harnesses ions already flowing down their gradient, per Bio 0341, rather than pumping against it.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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