Biology / Unit 3 Bio 0595 short lesson, about 20 seconds
The Chloroplast Electron Transport Chain
Captions available
The idea
The chloroplast's electron transport chain carries electrons from photosystem II to photosystem I, pumping hydrogen ions from the stroma into the thylakoid lumen.
In practice
This chain parallels the mitochondrial chain, Bio 0550, but pumps ions into the thylakoid lumen instead of the intermembrane space.
Where people slip
A second photosystem re-energizes electrons midway, unlike respiration's simple one-way loss to a final acceptor.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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