Aim: How is ATP the cell’s energy molecule?

Why do living things need energy? ALL CELLS IN OUR BODY NEED ENERGY

What kind of work do our cells need energy for? Active Transport Work ex. Molecule movement Chemical Work ex. SYNTHESIS Mechanical work ex. movement

How do we get energy?

What life function is in charge of producing ATP from glucose? CELL RESPIRATION

What is the energy that our cells use?

Adenosine Tri-Phosphate Why is it called ATP? Adenosine Tri-Phosphate

What is holding these parts together? ATP What are the parts of ATP? Section 8-1 Adenine Ribose 3 Phosphate groups What is holding these parts together? BONDS Go to Section:

Where is the energy found? IN THE BONDS

How is energy released from ATP? Break off a phosphate! Or break a bond!

What is ATP broken down into? Energy Stored Energy Released ADP+P

How is ATP different from ADP? 3 phosphates 2 phosphates

Figure 8-3 Comparison of ADP and ATP to a Battery Which has more energy? Section 8-1 ADP ATP Energy Energy Adenosine diphosphate (ADP) + Phosphate Adenosine triphosphate (ATP) Partially charged battery Fully charged battery Go to Section:

ATP has more energy! Figure 8-3 Comparison of ADP and ATP to a Battery Section 8-1 ADP ATP Energy Energy Adenosine diphosphate (ADP) + Phosphate Adenosine triphosphate (ATP) Partially charged battery Fully charged battery Go to Section:

Have you ever heard of creatine? Many athletes now use a dietary supplement called creatine to enhance their performance. Although muscle cells contain only enough ATP for a few seconds of intense activity, most have a reserve nearly twice as large in the form of a molecule called creatine phosphate. When the muscle goes to work and starts to use up its available ATP, phosphates are transferred from creatine phosphate directly to ADP, regenerating ATP in a matter of milliseconds. More creatine, more muscle activity.