1. ATP: Energy in a Molecule
Section 10.1

2. Energy The ability to do work All biological processes require energy
Energy is gained by the food an organism eats

3. Energy Use A cell can not use all available energy at once
Some is stored as ATP (adenosine triphosphate)

4. ATP

5. ADP and ATP
Cells make ATP by adding a phosphate group to ADP (Adenosine diphosphate)
When the phosphate to phosphate bonds are created energy is stored
When a phosphate group breaks off ATP becomes ADP and energy is released
The ADP then again bond with another phosphate group to store more energy as ATP
Energy is stored in phosphate to phosphate bonds

6. What do you think What would happen if ADP lost a phosphate group?
It would give off energy become AMP awaiting either gaining a phosphate group or losing it last remaining one

7. Types of Energy
Available energy (energy that can be used right away) is called free energy
Energy that is stored is potential energy

8. ATP