Medium ADP and not ADP already tightly bound to phylakoid membranes forms the initial ATP in chloroplast phosphorylation.
D000244:Adenosine Diphosphate / Q000378:metabolism* / Q000494:pharmacology; D000255:Adenosine Triphosphate / Q000378:metabolism*; D002462:Cell Membrane / Q000187:drug effects / Q000378:metabolism; D002736:Chloroplasts / Q000187:drug effects / Q000378:metabolism*; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D010785:Photophosphorylation / Q000187:drug effects; D010944:Plants
D000244:Adenosine Diphosphate; D000255:Adenosine Triphosphate