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

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

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.

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

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

LOSE 1 PHOSPHATE MITOCHONDRIA

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

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

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.