The energy from the sun or from food sources must be converted to a form that cells can use. what is the energy currency of the cell?

The common source of energy that can b used by the cell to drive endergonic metabolic reactions in the cell are molecules of ATP.

Predominantly generated, by the mitochondrion organelle, this substance consists of 3 highly electronegative phosphate groups covalently bonded to each other along with a base.