It is adnosine triphosphate as shown in the figure, this molecule contains 3 phosphate groups.
the bond between the first phosphate group which directly bind to the carbon 5 of the pentose sugar is weak bond, but the other 2 bonds between the other 2 phosphate groups are called strong bonds which upon their breakage the high energy produced.
so in biological reactions when body needs energy it breaks the thirds phosphate group releasing energy and yield ADP( Adenosine diphosphate)
and in some reaction also the second phosphate group also broken and yields AMP( Adenosine monophosphate)
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