Cellular Information System (CIS v.1.1b)

GTP 
(Guanosine triphosphate)

and

ATP 
(adenosine triphosphate)

Function:

• Chemical energy sources within the cell.
• If a process needs power to make it happen e.g. making a protein then the energy source is usually provided by a molecule of ATP or GTP
• in protein synthesis GTP provides the power