Answer:
Nitrogenous base and phosphate.
Explanation:
Nitrogenous base and phosphate group are the elements which is considered as the key component of adenosine triphosphate (ATP). adenosine triphosphate comprise of nitrogenous base, the sugar, ribose, adenine and three phosphate groups attached to ribose. This adenine triphosphate is used by the cell for the production of energy needed for different cellular activities.
