Biology Pages
Kimball's Biology Pages: Atp (Adenosine Triphosphate)
A good biochemistry site that includes information about the structure of adenosine triphosphate and a description of the role that it plays in the cell.
Estrella Mountain Community College
Online Biology Book: Atp and Biological Energy
Through full-color images and concise information, learn about adenosine triphosphate, or ATP, the molecular unit of energy currency of cells.