what form of energy is atp?
Energy within a cell exists in the form of chemical energy. A source of this chemical energy is a. compound called adenosine triphosphate (ATP). ATP when changed to a compound called. adenosine diphosphate (ADP) releases energy for biological work in a cell. ADP can be changed. to ATP, but this reaction requires energy. During cell respiration, energy made available from. the breakdown of glucose is used to change ADP to ATP. In this investigation, you will. (a) use paper models to construct molecules of adenosine triphosphate (ATP) and adenosine. diphosphate (ADP).