What is the role of ADP in the cell?

Question

praetorian.10 · Answer

ADP are the product of the release of the energy from the ATP the third phosphate on the adensoine tri-phosphate is held on to the molcule with a specific amount of energy------whenthe bond breaks the energy is released to whatever other metabolic reactoin needs it leaving the free phosphate and a larger ADP molecule. 
eventually the ADP hooks up with a free phospahte again whensome other reacton releases enough chemical energy to connect the phosphate to the ADP

anonymous · Answer

ATP and [ADP] are used in cellular respiration to produce sugars. (ATP= energy)

deepika.comet · Answer

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deepika.comet · Answer

@cosmicchaotic is right..!!!
they are used in cellular respiration to produce sugars.