1. 4.4 Intro to Cellular Respiration
Set up Cornell Notes on pg. 47
Topic: 4.4/4.5 Intro to Cellular Respiration
Essential Question:
1. Describe the relationship between cellular respiration and photosynthesis in a double-bubble map.
4.4 Intro to Cellular Respiration
2.1 Atoms, Ions, and Molecules
1. Describe the relationship between cellular respiration and photosynthesis in a double bubble map.

2. KEY CONCEPT The overall process of cellular respiration converts sugar into ATP using oxygen.

3. Try and hold your breath for as long as you can (no cheating).
How did you feel as you were holding your breath?
Why do you think you felt this way?
If you were to run a few miles, what would happen to your breathing?

4. ATP How does your body use oxygen?
Oxygen helps your body break down chemical energy that is stored in sugars and other carbon based molecules.
The energy produced is ATP
ATP

5. Pg. 46
Compare the reactants and products. What do you notice?

6. Plants use photosynthesis to make their own food
Animals eats other organisms as food
Food is not the direct source of energy
Instead we break down molecules from food to produce ATP
Cellular respiration releases chemical energy from sugars (produced by photosynthesis) and other carbon-based molecules to make ATP when oxygen is present

7. Two “Stages”
Light Dependent- ETC-Fuels Light Independent
Light Independent- Calvin Cycle- Makes Glucose
Two “Stages”
Stage I- Kreb’s Cycle- Fuels Stage II
Stage II- ETC- Makes lots of ATP!

8. Cellular respiration takes place in mitochondria “the powerhouse of the cell”

10. There are two main parts to a mitochondria:
1. Inner membrane
2. Matrix- area inside the inner membrane

11. Takes place in the _____________1 2 4 3
Glycolysis: 1. 3.
Takes place in ___________ 2. 5. 4. 6. 7. 8.
Takes place in the _____________

12. Energy from Glycolysis1 2 4 3
Glycolysis:
Glucose is broken down into 2 3-carbon molecules
1. Mitochondria
3. Kreb’s Cycle
Takes place in the Matrix
ATP
5. Energy
2. 2 Pyruvates
4. 6 CO2
Energy from Glycolysis
ATP
6. 6 O2
7. 6 H2O
8. Electron Transport Chain
Takes place in the Inner Membrane

13. The equation for the overall process is:
C6H12O6 + 6O2  6CO2 + 6H2O + ATP
The reactants in photosynthesis are the same as the products of cellular respiration.

14. Glycolysis must take place first. It happens in the cell’s cytoplasm
anaerobic process (does not require oxygen)
splits glucose (from photosynthesis) into two three-carbon molecules called pyruvates
produces two ATP molecules
2 pyruvate
“Sweet Split”
ATP

15. Cellular respiration releases chemical energy from glucose (produced by photosynthesis) and other carbon-based molecules to make ATP when oxygen is present
Cellular respiration is aerobic, or requires oxygen. O2

16. Video
Turning Energy into ATP

17. Pg. 46 in INB Pg. 115 in book
Cellular Respiration
…..Reactants…..
Stage 1
Stage 2 1. 2. 3. 4.
…..Products…..

18. energy from glycolysis
Stage I
The Krebs cycle takes place in the mitochondrial matrix
2 pyruvates enter cellular respiration
6H O 2
6CO 6O
mitochondrion
matrix (area enclosed
by inner membrane)
inner membrane
ATP
energy
energy from glycolysis 1 4 3
and
Pyruvates are broken down and ATP is made during the Kreb’s Cycle
ATP transfers energy-carrying molecules to Stage II: The Electron Transport Chain
releases carbon dioxide as waste
Krebs Cycle

19. energy from glycolysis
Stage II
The electron transport chain produces a large amount of ATP and takes place in the inner membrane
6H O 2
6CO 6O
mitochondrion
matrix (area enclosed
by inner membrane)
inner membrane
ATP
energy
energy from glycolysis 1 4 3
and
3. energy transferred to proteins in the inner membrane
4. oxygen enters process and is used to make H2O
A large number of ATP molecules are produced
Electron Transport
water and heat are released

20. Cellular Respiration
Sugar
(2 pyruvates) O2
…..Reactants…..
Stage 1
Stage 2
E.T.C.: Energy is transferred to proteins in the inner membrane of the mito.
Energy is transferred to the E.T. C.
A large # of ATP is made. O2 is used to make H2O
The Kreb’s Cycle breaks down pyruvates into ATP
CO2
H2O
Heat
…..Products…..

21. Video
Turning ATP into ADP

22. Video
Glycolysis and Cellular Respiration

23. Photosynthesis & Cellular Respiration
Set up Cornell Notes on pg. 49
Topic: Photosynthesis & Cellular Respiration
Essential Question:
What is the difference between aerobic and anaerobic processes.
What processes in cellular respiration are aerobic? Anaerobic?
Photosynthesis & Cellular Respiration
2.1 Atoms, Ions, and Molecules
What is the difference between aerobic and anaerobic processes.
What processes in cellular respiration are aerobic? Anaerobic?

24. EQ: Please create a Double-bubble map comparing and contrasting Photosynthesis and Cellular Respiration.
Pg. 48 in INB
Cellular Respiration
Photosynthesis
Include: Reactants/Products, organisms that undergo each, Organelles, chemical equation, etc…

25. White board:
Cellular Respiration
Photosynthesis

26. Reactants
Light Energy
CO2
H2O
Reactants
Glucose O2
Plants
Energy
ATP
Kreb’s Cycle
Cellular Respiration
Photosynthesis
Mitochondria
Chloroplast
Animals
Calvin Cycle
Chemical Reactions
Products
CO2
H2O
Heat
Products
Glucose (sugar) O2
E.T.C
ATP
2 Main Stages

27. Two “Stages”
Light Dependent- ETC-Fuels Light Independent
Light Independent- Calvin Cycle- Makes Glucose
Two “Stages”
Stage I- Kreb’s Cycle- Fuels Stage II
Stage II- ETC- Makes lots of ATP!

28. Life on Earth is solar powered, and energy makes a one-way trip through an ecosystem
Chemicals, however, are recycled
The CO2 and H2O released by cellular respiration are converted through photosynthesis to glucose and O2, which are then used again in respiration
Photosynthesis
CO2 and H2O
Glucose and O2
Cellular respiration

29. On pg. 49- Label each part of this diagram1. 2. 3. 9. 4. 8. 6. 5. 7.

30. 1. Photosynthesis
2. Chloroplast
3. C6H12O6
9. CO2
4. O2
8. H2O
5. Cellular Respiration
6. Mitochondria
7. ATP

32. Titles: Photosynthesis and Cellular respiration
Pg. 49 in INB
Please make a diagram showing the relationship between Photosynthesis and Cellular Respiration
Chloroplast
Mitochondria
An animal
a plant
ALL products
Titles: Photosynthesis and Cellular respiration
Show the arrows of the cycle
Cellular Respiration