I am familiar with adenosine diphosphate (ADP) and adenosine triphosphate (ATP), how one relates to the other, and how each is formed in cellular respiration and photosynthesis, but I am confused as to how regular adenosine is formed.
I was reading an article on caffeine which stated:
Caffeine is structurally similar to adenosine, a neuromodulator, whose formation is dependent on the relative rates of ATP breakdown and synthesis.
From this I concluded that ATP can be changed to regular adenosine, and adenosine back to ATP, but I cannot find anything else on the internet to support my conclusion. I was also wondering when and why your body would change ADP into adenosine instead of ATP. I assume that AMP plays a role in all of this, and possibly ADA.
I only have a high school level education in biology, so please bear with me. If you do not mind, please include a source in your answer so I can further research on my own. Thanks!