Unformatted text preview: he bottom of this electron transport
chain, the electrons fill an electron “hole” in
an oxidized P700 center.
6. This hole is created when photons
excite electrons on the photosystem I
– The excited electrons are captured by a
second primary electron acceptor which
transmits them to a second electron transport
– Ultimately, these electrons are passed from the
transport chain to NADP+, creating NADPH.
• NADPH will carry the reducing power of these highenergy electrons to the Calvin cycle. Similar to 7.12 - pumps protons into the lumen of the thylakoid
- one part: get high energy electron to NADPH
- 2nd: generate ATP by building up pool of electrons 9 Photosynthetic Electron Transport - ATP synthase complex is within thylakoid membrane - electron transport (>ig 7.11 page 147):
- 3 major protein complexes of the electron transport chain: photosystem II, cytochrome complex and photosystem I
- electron >low between photosystem II and cytochrome complex is facilitated by a pool of molecules of plastoquinone
- electron >low from the cytochrome co...
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