1. Importance of ATP Powers every activity of the cell and organism
Living things need to store and release energy.
We store our energy as ATP

2. ATP= Adenosine Triphosphate
Adenine
Ribose
3 Phosphate Groups
ATP= Adenosine Triphosphate

3. ATP Composition The energy comes from the bonds
ATP is made up of:
Adenine base
Ribose sugar
3 phosphate groups
The energy comes from the bonds
between the phosphates.

4. How is energy released from ATP?
The bond between the 2nd and 3rd phosphates are broken.
The energy released can be used for:
Active transport
Muscle contraction
Protein synthesis

5. ADP
Adenosine Diphosphate
Only has 2 phosphates (instead of 3)

6. LOSE 1 PHOSPHATE
MITOCHONDRIA

7. Compare ATP and ADP
For your birthday you were given a Nintendo DS. You placed fresh new rechargeable batteries in the game boy so you could start playing. After a few months your Nintendo DS starts warning you that you have low batteries.
Does ATP represent the fully charged batteries or the low charged batteries?
Fully charged
Does ADP represent the fully charged batteries or the low charged batteries?
Low charged batteries

8. ATP vs. ADP ATP is like a fully charged battery.
ADP is like a partially charged battery.
ATP
ADP

9. Checkpoint What is the difference between ATP and ADP?
Where does the energy come from in ATP?
Provide an example of how cells use the energy provided by ATP.