ATP

LO: What is ATP?

Adenosine Triphosphate

• It is the ENERGY CURRENCY of the cell. 
• ATP is hydrolysed when a cell needs energy. ATP -> ADP + Pi + ENERGY

         -reversible reaction

        ADP + Pi + ENERGY -> ATP

• ATP is a small molecule - it produces energy in "small packets"

          -> A single molecule may be enough to supply the energy needs of a single chemical reacion.

• Constantly being used and recycled by every living cell.
• Soluble within the cell and so can easily be transported from site of energy release to where it is needed.