ATP

Adenosine Triphosphate

Cell respiration is the controlled release of energy in the form of ATP

--> the controlled release of energy in the form of ATP from organic compounds in cells

How do adenosine lose a phosphate molecule?

1. Muscle contraction requires energy

2. Energy is synthesised in the mitochondria and stored as ATP in the cytoplasm of the muscle cells

3. Through ATPase (enzyme) the last high energy bond breaks turning ATP into ADP

4. The phosphate is now unattached creasing an inorganic phosphate and releasing a high amount of explosive energy as a result from the catabolic reaction

5. There is a limited amount of ATP in the muscles only lasting for 3-5 seconds

6. For exercise to continue ATP has to be re-generated from ADP using energy obtained from other sources

7. ATP synthase aids the anabolic reaction allowing the inorganic phosphate to reconnect with ADP to resynthesise ATP

8. This concept keeps reoccurring to give us a release of energy and then resynthesise to produce stored energy