Ebee ka e si emepụta ATP na chloroplast? N'iburu ajụjụ nke mbụ n'uche, dee ihe gbara ya gburugburu bụ́ nke ga-enye azịza ya. Ọ nwere ike ịbụ 1 - 20 ahịrịokwu. Ihe ndị gbara ya gburugburu:
Dị ka mitochondria, chloroplasts na-eji ike nwere ike echekwara na H +, ma ọ bụ hydrogen ion gradient iji mepụta ike ATP. Usoro foto abụọ ahụ na-ejide ike ọkụ iji mee ka elektrọn ndị e si na mmiri nweta ike, ma hapụ ha n'agbụ nnyefe elektrọn. Mkpụrụ ndụ dị n'etiti photosystems na-eji ike elektrọn eme ihe iji kpoo ion hydrogen n'ime oghere thylakoid, na -emepụta gradient ịta ahụhụ, yana ọtụtụ ion hydrogen (ruo otu puku ugboro karịa) n'ime usoro thylakoid karịa na stroma. Igwe hydrogen dị na oghere thylakoid na-agbasaghachi azụ na gradient ha, na-agaghachi na stroma site na ATP synthase. ATP synthase na-eji ike sitere na ion hydrogen na-asọba iji phosphorylate adenosine diphosphate n'ime adenosine triphosphate, ma ọ bụ ATP. Ebe ọ bụ na ATP synthase nke chloroplast na-apụta n'ime stroma, a na-agwakọta ATP n'ebe ahụ, n'ọnọdụ iji mee ihe n'omume ndị gbara ọchịchịrị.