Thylakoid membrane (lumen ↔ stroma)
Light reactions of photosynthesis
Two photons per electron: water in at PSII, NADPH out at PSI.
0%
this pathway
Net yieldPer 2 H₂O split: 1 O₂ · 2 NADPH · ~3 ATP
Steps6
Irreversible6
Which photosystem does what
PSII splits H₂O (the 2s go together); PSI makes NADPH. And 680 runs before 700.