How is one molecule of ATP formed from one molecule of ADP?
Question #98832. Asked by CoolerThanU13.
truefaithmom
Answer has 3 votes
Currently Best Answer
truefaithmom 17 year member
240 replies
Answer has 3 votes.
Currently voted the best answer.
The energy-carrying part of an ATP molecule is the triphosphate "tail". Three phosphate groups are joined by covalent bonds. The electrons in these bonds carry energy.
Within the power plants of the cell (mitochondria), energy is used to add one molecule of inorganic phosphate (P) to a molecule of adenosine diphosphate (ADP).
ADP + P + Energy ---> ATP
The amount of energy stored is about 7,300 calories for every mole of ATP formed.