ATP-ADP Cycle

1. ATP-ADP Cycle

2. ATP-ADP Cycle • Transformation of Energy • Energyis the ability to do work. • Thermodynamicsis the study of the flow and transformation of energy in the universe.

3. ATP-ADP Cycle • Laws of Thermodynamics • First law-Energy can be converted from one form to another, but it cannot be created nor destroyed. • Second law-Energy cannot be converted without the loss of usable energy.

4. ATP-ADP Cycle • ATP – ADP Cycle • ATP (Adenosine Triphosphate) transfers energy from the breakdown of food molecules to cell functions • Energy is released when a phosphate group (Pi) is removed • ADP (Adenosine Diphosphate) is changed into ATP when a phosphate group (Pi) is added

5. phosphate removed ATP-ADP Cycle • ATP – ADP Cycle

6. ATP-ADP Cycle • Carbohydrates • Carbohydrates are the molecules most commonly broken down to make ATP. • not stored in large amounts • up to 36 ATP from one glucose molecule

7. ATP-ADP Cycle • Lipids • Lipids store the most energy. • 80 percent of the energy in your body • About 146 ATP from a triglyceride

8. ATP-ADP Cycle • Proteins • Proteins are least likely to be broken down to make ATP. • amino acids not usually needed for energy • about the same amount of energy as a carbohydrate

9. ATP-ADP Cycle