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The two products of the photolysis of water that contribute to the proton gradient and ATP yield are
AGlucose and CO2 on the stromal side membrane
BOxygen molecules and NADPH in the matrix
CATP and ADP molecules across the membrane
DProtons in the lumen and electrons to PS II
Answer & Solution
Correct answer: D. Protons in the lumen and electrons to PS II
Photolysis: 2H2O -> 4H+ + O2 + 4e-. The H+ accumulate in the thylakoid lumen, contributing to the proton gradient that drives ATP synthesis. The electrons replace those lost by excited P680. O2 is the by-product released.
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