Answer is: <span>b.phosphate. </span>ATP is short for adenosine triphosphate Adenosine triphosphate converts to either the adenosine diphosphate (ADP) or adenosine monophosphate (AMP), in this process energy is<span> released. ATP </span>is made of three components: the triphosphate, the sugar ribose and a nitrogenous base (adenine).