Relax

Respuesta :

From my knowledge that molecule is ATP. 

It's helpful if you know what the acronym ATP means.
Adenine Triphosphate

In this picture you can see Adenine, and 3 Phosphate groups. :) 
That's a dead giveaway! 

(Also Ribose is in ATP. Although you just need to remember the name of the acronym to identify it)