1. Cellular Respiration

2. Chemical Energy & Food
If I offered you a choice between $20 in cash, or a check for $20, which would you take?

3. Chemical Energy & Food ATP – the energy currency of the cell
It’s like cash in the cell
1. All parts of the cell can use it for energy

4. Cellular Respiration
2. Cellular Respiration is the process that makes energy(ATP) in your body

5. Cellular Respiration
3. Occurs in the cytoplasm and mitochondria

6. Cellular Respiration Words
Oxygen + Glucose  Carbon Dioxide + Water + Energy (ATP)

7. Cellular Respiration Chemical Formulas
O2 + C6H12O6  CO2 + H2O + ATP (energy)

8. Does This Formula Look Familiar?
O2 + C6H12O6  CO2 + H2O + ATP (energy)

9. Aerobic Respiration
4. Takes place when oxygen is present

10. Anaerobic Respiration
5. Takes place when oxygen is NOT present

11. If Anaerobic Step 1 = Glycolysis (no oxygen needed)
Happens in cytoplasm

12. Glycolysis 6. Glycolysis One glucose is broken into 2 pyruvates
Makes 2 ATP

13. Cellular Respiration
Step 2 = Lactic Acid Fermentation

14. Step 2: Lactic Acid Fermentation
occurs when NO oxygen is present
2 ATP produced

15. Step 2: Lactic Acid Fermentation
Causes muscles to become sore because lactic acid builds up
Alcohol is made when bacteria do fermentation

16. So If NO Oxygen (anaerobic)
4 total ATP made

17. If Aerobic
Step 1 = Glycolysis (no oxygen needed)
Still 2 ATP made

18. Step 2: Krebs Cycle (happens in Mitochondria)
Pyruvates made in glycolysis break down more
2 ATP produced

19. Total So Far
Glycolysis = 2ATP
Krebs Cycle = 2ATP
4 total ATP

20. Step 3: Electron Transport Chain (needs oxygen)
Electrons from Krebs cycle used to make more ATP
34 ATP produced

21. Total Glycolysis = 2ATP Aerobic/Anaerobic = 2ATP
Electron Transport Chain = 34 ATP
38 total ATP!

22. Biochemical Pathway
The products of photosynthesis are the reactants of cellular respiration

23. Energy & Exercise
Quick energy – when anaerobic respiration takes place in your body, lactic acid is formed
This can lead to muscle soreness
Long-Term Energy – Use cellular respiration to produce energy. Exercising or activities that last for at least 15 to 20 minutes. Best form for weight control.

24. Comparing Photosynthesis & Respiration
Cellular Respiration
Function
Location
Reactants
Products
Equation

25. Comparing Photosynthesis & Respiration
Cellular Respiration
Function
Energy Storage
Energy Release
Location
Reactants
Products
Equation

26. Comparing Photosynthesis & Respiration
Cellular Respiration
Function
Energy Storage
Energy Release
Location
Chloroplasts
Mitochondria
Reactants
Products
Equation

27. Comparing Photosynthesis & Respiration
Cellular Respiration
Function
Energy Storage
Energy Release
Location
Chloroplasts
Mitochondria
Reactants
CO2 and H2O
C6H12O6 and O2
Products
Equation

28. Comparing Photosynthesis & Respiration
Cellular Respiration
Function
Energy Storage
Energy Release
Location
Chloroplasts
Mitochondria
Reactants
CO2 and H2O
C6H12O6 and O2
Products
Equation

29. Comparing Photosynthesis & Respiration
Cellular Respiration
Function
Energy Storage
Energy Release
Location
Chloroplasts
Mitochondria
Reactants
CO2 and H2O
C6H12O6 and O2
Products
Equation
6CO2 + 6H2O  C6H12O6 + 6O2
C6H12O6 + 6O2
6CO2 + 6H2O

30. Cellular Respiration

31. Cellular Respiration