Final answer:
When a sugar is added to adenine, it becomes adenosine. Adenosine can further form ADP or ATP, which are involved in energy storage and transfer in cells.
Step-by-step explanation:
When a sugar is added, adenine becomes adenosine. Adenosine is a nucleoside composed of adenine and a ribose sugar molecule. Furthermore, when additional phosphate groups are added to adenosine, it forms adenosine diphosphate (ADP) or adenosine triphosphate (ATP), which are involved in energy storage and transfer in cells.
Learn more about Adenine and sugars