ADP +Pi ( is considered as added energy that goes to ATP when energy is released and then back aground to ADP. It’s a cycle that keeps recycling in order for energy to be produced and then released.Â
Energy is added to form ATP and when ATP is broken down energy is again released. Energy is released in a way that the cells can use.
 (b) Explain how these characteristics are functionally important for the cell.
The way ATP is used is cells are called Coupled Reactions which means A+B are used as a single product called C and if this reaction takes energy ATP is produced which is the coupled reaction Couple reaction is when ATP and A+B are both running