Section 8: Photosynthetic Electron Transport lecture 16

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12 Terms

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Where do photosynthetic electrons originally come from?
Water.
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What happens to electrons in PSII?
They absorb light energy and become excited.
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What is energy from PSII electrons used for?
Pump H+ and help make ATP.
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Where are H+ pumped in chloroplasts?
Into the thylakoid lumen.
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Where does ATP synthesis occur in chloroplasts?
Stroma.
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What happens to electrons after PSII?
They move through an electron transport chain.
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What happens when electrons reach PSI?
They absorb light energy again.
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What is the final electron acceptor in photosynthesis?
NADP+.
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What does NADP+ become after accepting high-energy electrons?
NADPH.
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What two energy carriers are produced by the light reactions?
ATP and NADPH.
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What are ATP and NADPH used for?
Power the Calvin cycle.
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What is photophosphorylation?
Light-driven production of ATP.