Follow how electron transport builds a proton gradient in the thylakoid space and how proton flow through ATP synthase drives photophosphorylation in IB Biology HL C1.3.12.
A wide variety of organic compounds are used by living organisms.
Describe how ATP is produced by Photosystem II in the light-dependent stage of photosynthesis.
light (energy) absorbed by pigments/chlorophyll/photosystems;
excited electrons passed to electron carriers/electron transport chain;
protons/hydrogen ions pumped into thylakoid (space);
proton gradient/high proton concentration generated;
protons pass via ATP synthase to the stroma;
ATP synthase phosphorylates ADP/ATP synthase converts ADP to ATP;
photophosphorylation/chemiosmosis;
ATP synthase/electron carriers/proton pumps/photosystems/pigment are in the thylakoid membrane;