ATP synthase is located in the membrane of cellular structures called mitochondria; in plant cells, the enzyme also how does adp become atp is found in chloroplasts. ADP (adenosine diphosphate) and ATP (adenosine triphosphate) are two energy storehouses in a cell. The cleaving of the third phosphate group results in the formation of ADP, which… Continue reading Adenosine Triphosphate ATP Definition, Structure, & Diagram