The flow of hydrogen ions through ATP synthase from the thylakoid lumen to the stroma is called:
APhotolysis
BGlycolysis
CHydrolysis
DChemiosmosis
Answer & Solution
Correct answer: D. Chemiosmosis
1. Protons pile up in the lumen.
2. Their rush through ATP synthase is chemiosmosis.
3. ATP synthase adds a phosphate to ADP.
_Source: OpenStax Biology 2e, Chapter 8, Photosynthesis (CC BY 4.0)._
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