1. Cellular Respiration
8.3 Pages

2. 1. Converts (glucose) from food into ATP energy.
CELLULAR RESPIRATION
1. Converts (glucose) from food into ATP energy.

3. Overview of Respiration
CELLULAR RESPIRATION
Overview of Respiration
2. All organisms respire! 3. ATP energy is released 4. ATP is used for cellular processes like movement of materials, cellular reproduction, protein synthesis, etc. 5. Happens in mitochondria

4. Overview of Respiration
CELLULAR RESPIRATION
Overview of Respiration
Two Types of Cellular Respiration:
6.:
Aerobic (oxygen is present)
Anaerobic (oxygen is not present)

5. Cellular respiration formula
7. C6H12O6 + 6O2  6CO2 + 6H2O + ATP Energy Glucose + oxygen  carbon dioxide + water + ATP energy

6. Electron Transport Chain, or ETC
Parts of RESPIRATION
Cellular Respiration 8.
Glycolysis
Krebs cycle
Electron Transport Chain, or ETC

7. Step 1: GLYCOLYSIS
9. Glucose is Broken Down 10. Occurs in the CYTOPLASM: its ANAEROBIC! 11. Produces 2 ATP and 2 pyruvate

8. AEROBIC RESPIRATION Step 2: KREB’S CYCLE
12. Occurs in the mitochondria: IT’S AEROBIC! 13. Pyruvate goes in 2 ATP and 6 CO2 come out Provides electrons (NADH and FADH) for ETC

9. Step 3: ELECTRON TRANSPORT CHAIN
14. Occurs in the mitochondria: it’s AEROBIC!
15.Produces 34 ATP using the electrons provided by Glycolysis AND the Krebs Cycle
ATP molecules total
are produced during
cellular respiration
from one glucose molecule!

10. 17. Write down the formulas for photosynthesis and respiration
17. Write down the formulas for photosynthesis and respiration. How do they relate? How photosynthesis & respiration relate.
Almost opposite processes
Photosynthesis produce food (store)
Respiration breaks down food (releases)
Photosynthesis uses CO2 and releases O2
Respiration releases CO2 and uses O2

11. If there’s NO OXYGEN, respiration is ANAEROBIC, then… FERMENTATION
If there’s NO OXYGEN, respiration is ANAEROBIC, then… FERMENTATION!!! Write in your notebook: only 2 ATP are produced from Fermentation! The 2 pyruvic acid molecules from Glycolysis go through fermentation: Lactic acid fermentation: pyruvic acid -> lactic acid occurs in animals; ex.: muscle “pain” from too much exercise, yogurt Alcoholic fermentation: pyruvic acid -> ethyl alcohol occurs in yeast and some bacteria; ex.: alcoholic beverages, bread

12. Maybe an Amoeba Sisters Video Will Help
mI_Qj1vk-44g

13. The formula CO2 + H2O --- C6H12O6 + O2 is the formula for. a
The formula CO2 + H2O --- C6H12O6 + O2 is the formula for ? a. photosynthesis b. respiration
___ is the process which breaks down food molecules to release energy and takes place in the mitochondria.
a. photosynthesis b. digestion c. respiration
___ is formed when ATP releases a phosphate.
a. ADP b. AMP c. APP
Fermentation is a form of ___ respiration which occurs without the presence of oxygen.
a. aerobic b. anaerobic c. antioxidant
The green pigment which is present in plant cells and allows them to go through photosynthesis is ___.
a. chlorophyll b. chloroplast c. chlorosis
Quiz 4

14. Cellular Respiration 2 36

15. Where does Glycolysis take place?

16. What does Glycolysis require?

17. What is step 2 of cellular respiration?
Glycolysis

18. Where does the Krebs Cycle take place?
Glycolysis

19. What does the Krebs Cycle Make?

20. What does the ETC Use?

21. What does the ETC Make?

22. Cellular Respiration – Part II Anaerobic Respiration
Fermentation

23. But they still need ENERGY!!
ANAEROBIC - NO OXYGEN!!
Some cells can function for a little while without oxygen.
Other Cells may go their entire life without oxygen.
But they still need ENERGY!!

24. ANAEROBIC RESPIRATION
CELLULAR RESPIRATION
Can release energy when oxygen is not present but...
It’s far less efficient.
Begins with glycolysis followed by fermentation.

25. Same as Before: Glucose is Broken Down
Step 1: GLYCOLYSIS
Same as Before: Glucose is Broken Down
Inputs:
Glucose
2 ATP
Outputs:
2 Pyruvate
2 NADH
4 ATP
Occurs in the CYTOPLASM

26. Special Note:
Glycolysis can produce thousands of ATP molecules in milliseconds.
But quickly fills all available NAD+ (electron carriers) with electrons and the process stops, so it’s only good for short-term energy.

27. ANAEROBIC RESPIRATION
Step 2: FERMENTATION
ANAEROBIC RESPIRATION
Type of anaerobic respiration that releases energy without oxygen
If oxygen is not present, the next step is either
Lactic acid fermentation
Alcoholic fermentation

28. ANAEROBIC RESPIRATION
Step 2: FERMENTATION
ANAEROBIC RESPIRATION
Lactic Acid Fermentation
Converts pyruvic acid into lactic acid and CO2
Responsible for food production using microbes (Swiss cheese)
Causes muscle fatigue/burning

29. ANAEROBIC RESPIRATION
Step 2: FERMENTATION
ANAEROBIC RESPIRATION
Alcoholic Fermentation
Converts pyruvic acid into alcohol and CO2
Responsible for food production using microbes (sourdough bread)

30. Summary Of Fermentation
Glycolysis  Fermentation
02+ C6H12O6  6CO2 + 6H2O + ATP + alcohol
or lactic
acid

31. Advantage of Aerobic Respiration
Yields 66% more energy
net ATP
That’s nearly 20 times more ATP than glycolysis alone.

32. Energy Yield without oxygen
Fermentation  2 ATP
(that’s 36 less ATP than aerobic respiration)

33. What is the overall purpose of cellular respiration?
Chapter 8
Cellular Energy
8.3 Formative Questions
What is the overall purpose of cellular
respiration?
to make ATP
to process H2O
to store glucose
to deliver oxygen

34. Which represents the general sequence of cellular respiration?
Chapter 8
Cellular Energy
8.3 Formative Questions
Which represents the general sequence of
cellular respiration?
TCA cycle chemiosmosis glycolysis
glycolysis Krebs cycle electron transport
electron absorption catalysis
phosphorylation
fermentation
aerobic pathway anaerobic pathway

35. Which stage of cellular respiration is the anaerobic process?
Chapter 8
Cellular Energy
8.3 Formative Questions
Which stage of cellular respiration is the
anaerobic process?
glycolysis
Krebs cycle
electron transport

36. Which molecule generated by the Krebs cycle is a waste product?
Chapter 8
Cellular Energy
8.3 Formative Questions
Which molecule generated by the Krebs cycle is a waste product?
CoA
CO2
FADH2
NADH

37. What prevents pyruvate from entering the Krebs
Chapter 8
Cellular Energy
Standardized Test Practice
What prevents pyruvate from entering the Krebs
cycle and instead results in this pathway?
a buildup of CO2
a lack of oxygen
an excess of
glucose
an increased
demand for ATP

38. http://www. bing. com/videos/search