1. Cellular Respiration
NC Goal 2.05

2. Why do we eat?

3. Cellular respiration
Cellular Respiration: the process by which mitochondria break down food molecules to produce ATP (energy).

4. Cellular respiration
Cellular Respiration: the process by which mitochondria break down food molecules to produce ATP (energy).
Mitochondria: Organelle where respiration happens.

5. Cellular respiration There are two types:
_________________________: Uses oxygen
_________________________: Does NOT use oxygen.

6. Cellular respiration There are two types:
Aerobic respiration: Uses oxygen
Anaerobic respiration: Does NOT use oxygen.

7. C6H12O6 + O2  CO2 + H2O + ATP (energy)
Cellular respiration
C6H12O6 + O2  CO2 + H2O + ATP (energy)
What goes in:
What comes out:

8. C6H12O6 + O2  CO2 + H2O + ATP (energy)
Cellular respiration
C6H12O6 + O2  CO2 + H2O + ATP (energy)
What goes in:
Glucose C6H12O6
Oxygen gas O2
What comes out:

9. C6H12O6 + O2  CO2 + H2O + ATP (energy)
Cellular respiration
C6H12O6 + O2  CO2 + H2O + ATP (energy)
What goes in:
Glucose C6H12O6
Oxygen gas O2
What comes out:
CO2
H2O
ATP (energy)

10. C6H12O6 + O2  CO2 + H2O + ATP (energy)
Cellular respiration
Aerobic respiration
Uses oxygen
Formula for aerobic cellular respiration:
Happens in the mitochondria.
C6H12O6 + O2  CO2 + H2O + ATP (energy)

11. Cellular respiration
Do plants do respiration?

12. Cellular respiration Do plants do respiration? YES!!!!
Just having food inside doesn’t give you energy. Breaking the bonds in the food (breaking the food down) is what releases the energy!

13. Cellular respiration Do plants do respiration? YES!!!!
Just having food inside doesn’t give you energy. Breaking the bonds in the food (breaking the food down) is what releases the energy!
Plants use photosynthesis to make sugars out of water, CO2, and sunlight. But a plant cell needs to break down the sugars to make ATP.

14. Fermentation
Fermentation: the process of breaking down food to produce energy WITHOUT the presence of oxygen.
Two types:
Lactic acid fermentation
Alcoholic fermentation

15. Fermentation
Fermentation: the process of breaking down food to produce energy WITHOUT the presence of oxygen.
Two types:
Lactic acid fermentation
Alcoholic fermentation
Where in the cell does fermentation occur? In the cytoplasm.

16. Lactic acid fermentation
Glucose  Lactic acid + 2 ATP

17. Lactic acid fermentation
Glucose  Lactic acid + 2 ATP
Goes in
Glucose (C6H12O6)
Comes Out
Lactic acid
2 ATP

18. Lactic acid fermentation
Glucose  Lactic acid + 2 ATP
Who does it?
Goes in
Glucose (C6H12O6)
Comes Out
Lactic acid
2 ATP

19. Lactic acid fermentation
Glucose  Lactic acid + 2 ATP
Who does it? In muscles; some bacteria and other organisms.
Goes in
Glucose (C6H12O6)
Comes Out
Lactic acid
2 ATP

20. Alcoholic fermentation
Glucose  CO2 + alcohol + 2 ATP
Who does it?
Goes in
Glucose (C6H12O6)

21. Alcoholic fermentation
Glucose  CO2 + alcohol + 2 ATP
Who does it? Yeast, plants, and other organisms.
Goes in
Glucose (C6H12O6)
Comes Out
CO2
Alcohol
2 ATP

22. Comparing respiration and fermentation
Alcoholic Fermentation
AEROBIC Respiration
Lactic Acid Fermentation

23. Comparing respiration and fermentation
AEROBIC Respiration
Lactic Acid Fermentation
Alcoholic Fermentation
Goes in:

24. Comparing respiration and fermentation
AEROBIC Respiration
Lactic Acid Fermentation
Alcoholic Fermentation
Goes in:
Glucose (C6H12O6) O2

25. Comparing respiration and fermentation
AEROBIC Respiration
Lactic Acid Fermentation
Alcoholic Fermentation
Goes in:
Glucose (C6H12O6) O2
Comes out:

26. Comparing respiration and fermentation
AEROBIC Respiration
Lactic Acid Fermentation
Alcoholic Fermentation
Goes in:
Glucose (C6H12O6) O2
Comes out:
CO2
H2O
36 ATP

27. Comparing respiration and fermentation
AEROBIC Respiration
Lactic Acid Fermentation
Alcoholic Fermentation
Goes in:
Glucose (C6H12O6) O2
Comes out:
CO2
H2O
36 ATP
Goes in:

28. Comparing respiration and fermentation
AEROBIC Respiration
Lactic Acid Fermentation
Alcoholic Fermentation
Goes in:
Glucose (C6H12O6) O2
Comes out:
CO2
H2O
36 ATP
Goes in:
Glucose (C6H12O6)
Comes Out:
Lactic Acid
2 ATP

29. Comparing respiration and fermentation
Lactic Acid Fermentation
Alcoholic Fermentation
AEROBIC Respiration
Goes in:
Glucose (C6H12O6) O2
Comes out:
CO2
H2O
36 ATP
Goes in:
Glucose (C6H12O6)
Comes Out:
Lactic Acid
2 ATP
Goes in:
Comes Out:

30. Comparing respiration and fermentation
Lactic Acid Fermentation
Alcoholic Fermentation
AEROBIC Respiration
Goes in:
Glucose (C6H12O6) O2
Comes out:
CO2
H2O
36 ATP
Goes in:
Glucose (C6H12O6)
Comes Out:
Lactic Acid
2 ATP
Goes in:
Glucose (C6H12O6)
Comes Out:
Alcohol
CO2
2 ATP

31. Comparing respiration and fermentation
Lactic Acid Fermentation
Alcoholic Fermentation
AEROBIC Respiration
Goes in:
Glucose (C6H12O6) O2
Comes out:
CO2
H2O
36 ATP
Goes in:
Glucose (C6H12O6)
Comes Out:
Lactic Acid
2 ATP
Goes in:
Glucose (C6H12O6)
Comes Out:
Alcohol
CO2
2 ATP

32. Comparing respiration and fermentation
Lactic Acid Fermentation
Alcoholic Fermentation
AEROBIC Respiration
Goes in:
Glucose (C6H12O6) O2
Comes out:
CO2
H2O
36 ATP
Goes in:
Glucose (C6H12O6)
Comes Out:
Lactic Acid
2 ATP
Goes in:
Glucose (C6H12O6)
Comes Out:
Alcohol
CO2
2 ATP

33. Photosynthesis vs. Respiration
Goes In
Comes Out
Who does it?
Respiration
Goes In
Comes Out
Who does it?

34. Photosynthesis vs. Respiration
Goes In
Water
CO2
Sunlight (energy)
Comes Out
Who does it?
Respiration
Goes In
Comes Out
Who does it?

35. Photosynthesis vs. Respiration
Goes In
Water
CO2
Sunlight (energy)
Comes Out
Glucose C6H12O6 O2
Who does it?
Respiration
Goes In
Comes Out
Who does it?

36. Photosynthesis vs. Respiration
Goes In
Water
CO2
Sunlight (energy)
Comes Out
Glucose C6H12O6 O2
Who does it?
Respiration
Goes In O2
Glucose C6H12O6
Comes Out
Who does it?

37. Photosynthesis vs. Respiration
Goes In
Water
CO2
Sunlight (energy)
Comes Out
Glucose C6H12O6 O2
Who does it?
Respiration
Goes In O2
Glucose C6H12O6
Comes Out
Water
ATP (Energy)
Who does it?

38. Photosynthesis vs. Respiration
Goes In
Water
CO2
Sunlight (energy)
Comes Out
Glucose C6H12O6 O2
Who does it?
Respiration
Goes In O2
Glucose C6H12O6
Comes Out
Water
ATP (Energy)
Who does it?

39. Photosynthesis vs. Respiration
Goes In
Water
CO2
Sunlight (energy)
Comes Out
Glucose C6H12O6 O2
Who does it?
Plants + organisms w/ chlorophyll
Respiration
Goes In O2
Glucose C6H12O6
Comes Out
Water
ATP (Energy)
Who does it?
All living organisms.