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Cell Biology Notes: 10/6 Chloroplasts pt II
Terms in this set (12)
plastocyanin (Pc), ferredoxin (Fd), ferredoxin NADP+ reductase (FNR)
What are the 3 peripheral proteins in the chloroplast ETC?
facilitate the flow of e- from H2O to NADP+
PSI, PSII and the Chlorplast ETC work together to do what?
create an H+ gradient (used by ATP synthetase), reduce NADP+ to NADPH (They do all this using light energy and electron transport components)
how do PSI, PSII and the Chlorplast ETC facilitate the flow of e- from H2O to NADP+?
What atom plays a key role in the splitting of water?
From water to special quad to plastoquinone through cytochrome b6f to plastocyanin to Photosystem 1 to special pair to ferredoxin to FNR to NADP
Path of electron flow through (10 steps)
NADP, ATP, Oxygen
Name the three products of the light reactions
NADPH and ATP
what products of the light reactions are required by the dark reactions?
it is higher in the thylakoid space, H+ are pumped from stroma into thylakoid
The H+ concentration within a chloroplast is higher on which side of the thylakoid membrane?
From the split H2O, or it is pumped through cytochrome b6f complex, or it comes from NADP+ after FNR reduces it.
Where do the protons that create the concentration gradient across the thylakoid membrane come from?
Similar in structure to ATP synthase, F1 same as ATP synthase, F0 is made up of 14c proteins, 2 b proteins, 1 a protein
Chloroplast ATP synthase (Structure)
a series of enzymatically catalyzed reactions which incorporate CO2 into carbohydrate
Dark Reactions (Define)
Utilize a large quantity of ATP & NADPH (products of light reactions), Occur in stroma and cytosol
What molecules do the dark reactions use and where does it occur?
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