ATP Adenosine Tri-Phosphate

DRAW THIS ATP MOLECULE IN YOUR NOTEBOOK! ATP & ADP 1. ATP: Adenosine triphosphate 2. adenine + ribose + 3 phosphates 3. carries energy in Phosphate Bond. *Bond farthest from ribose stores the most sugar* 4. Source of all cell energy – “currency” (money) of the cell; different cell functions require different amounts of ATP DRAW THIS ATP MOLECULE IN YOUR NOTEBOOK! Adenine 3 Phosphate groups Ribose

How does ATP release energy? 5. When one phosphate group breaks off, energy is released 6. ADP can reform into ATP by bonding phosphate group

7. ADP: ADENOSINE DIPHOSPHATE 8. Adenine + ribose + 2 phosphates 9. ADP: Molecule that results from ATP losing one P fill in the labels in the picture in your notebook! ADP ATP Energy Partially charged battery Fully Adenosine diphosphate (ADP) + Phosphate Adenosine triphosphate (ATP)

How do cells use energy in ATP? When the phosphate bond is broken, the cell can use the released energy for different processes: In photosynthesis, for making glucose making new molecules - such as enzymes, cell membrane components, organelles, etc. to maintain homeostasis, transmit nerve impulses, move cilia, remove wastes, etc.

ATP – ADP cycle in cells 10. In photosynthesis: ATP is PRODUCED during Light-dependent reactions ATP is USED during Dark-dependent reactions to make sugar and sustain plant cell functions 11. In cell respiration: ATP is PRODUCED when breaking down sugars from food ATP is USED to sustain cell functions