Once ATP has released energy, it becomes ADP (adenosine diphosphate), which is a low energy molecule. ADP can be recharged back into ATP by adding a phosphate. This requires energy. These ...

ATP works by losing the endmost phosphate group when instructed to do so by an enzyme. This reaction releases a lot of energy, which the organism can then use to build proteins, contact muscles, etc.

1a). Standard curves are generated to mimic ADP generation during an enzymatic reaction: total adenosine concentration (ATP plus ADP) is kept constant for each sample while the percentage of ADP ...

Increased levels of glucose in the circulation lead to increased glucose uptake into pancreatic beta ... to increased production of ATP, and an increase in the ATP/ADP ratio (1); the increased ...