1. Respiration 2. What is ATP?
National 5 Biology
Respiration
2. What is ATP?

2. What have I learned? White boards Answer the following:
What is respiration?
What raw materials are required for respiration to take place?
How do these raw materials enter the cells?
What are the products of respiration?
Where in the body does respiration occur?
Suggest a cell(s) that may have a lot of mitochondria?

3. What are we learning today?
We are learning to:
State what ATP is?
State what ATP is used for?
Success criteria:
ATP and how it supplies energy

4. Adenosine Triphosphate (ATP)
ATP is an immediate stored source of energy found in most cells
ATP has the following structure
Adenosine Pi
1 molecule of adenosine
3 molecules of inorganic phosphate

5. What is ATP?
For the energy stored in ATP to be released it has to be broken down to ADP and Pi
releasing energy
ATP ADP + Pi
high energy build up requiring energy low energy
When energy is stored ADP and Pi are converted back into ATP

6. Role of ATP ATP makes energy available for energy requiring processes:
- muscular contraction
- cell division
- protein synthesis
- transmission of nerve impulses
ATP is the link between energy consuming, and energy releasing reactions

7. Chemistry of Respiration
Respiration is the re-generation of ATP
It is a complex series of biochemical reactions

8. Role of ATP Summary ATP Carbon dioxide + water Glucose + oxygen
RESPIRATION
energy
ADP + Pi
Amino acids
Protein
ENERGY
TRANSFER
WORK

9. Experiment
Follow the instructions on the experiment card

10. Experiment conclusions
Which solution supplied the most energy to the muscle?
Is ATP a protein?
Explain your answer to the above

11. Recap Write an exit summary to tell me the following: What is ATP?
What is ATP used for?
How does ATP supply energy?