1. Cellular Respiration

2. Connection between photosynthesis & respiration
Plant Cell
chloroplast
mitochondrion
glucose
ATP
chloroplast
mitochondrion
glucose
ATP
Plants
Create glucose through photosynthesis
Glucose is used to make ATP through cellular respiration

3. Connection between photosynthesis & respiration
Glucose
(from food)
mitochondrion
ATP
Glucose
Animals
Plants create glucose through photosynthesis
Animals eat the plants
Glucose is used to make ATP through cellular respiration

4. Cellular Respiration Who? All eukaryotic cells
Purpose? Convert food (such as glucose) into ATP
1 glucose = 36 ATP
Aerobic process: Reaction requires O2
Exothermic reaction: reaction that releases heat

5. Step 1: Glycolysis Where? In cytoplasm (anaerobic) What happens?
Mitochondria
Glucose
C6H12O6 C C
ATP
ATP C C
En-zyme C C C C C
Where? In cytoplasm (anaerobic)
What happens?
A) Glucose (from our food) is broken down
B) 2 ATP molecules released for cellular processes
C) Broken pieces of glucose (pyruvate) enter mitochondria

6. pyruvate

7. Step 2: Kreb’s Cycle Where? Inner mitochondria layer (matrix)
ATP
ATP
Mitochondria
En-zyme
ATP
CO2 C C
CO2 C
CO2
Energy molecule
ATP
CO2 C
CO2 C
En-zyme
CO2 C
Where? Inner mitochondria layer (matrix)
What happens?
A) Enzymes break apart pyruvate
B) 2 ATP & CO2 created
C) Energy molecules sent to fluid interior of mitochondria

8. Step 3: Electron Transport Chain
ATP
ATP
ATP
Mitochondria P O2
En-zyme
ADP
ATP O2
Energy molecule
ATP
ATP
ATP
ATP
ADP P
ADP O2 P P O2
ADP O2
Where? Across inner mitochondria membrane
What happens?
Mitochondria takes in oxygen (aerobic)
Enzymes + Energy molecule + O bonds ADP + P to create…. 32 ATP’s
Water (H2O) created as waste (O2 bonds with H from energy molecule to make H20)

9. Review Which molecule is the energy molecule of cells?
Which types of organisms perform cellular respiration?
Where does glycolysis occur?
What is broken down during glycolysis?
What is created as a result of glycolysis?
Where is aerobic respiration performed?
Name the 2 stages of respiration that take place in the mitochondria.
Which waste gas is created by the Kreb’s cycle?
How many ATP molecules are made during glycolysis?
How many ATP molecules are made during Kreb’s cycle?
How many ATP molecules are made during Electron transport chain?
How many ATP molecules are made in total?
Sketch and label a mitochondrion with the following:
Reactants, Products, & Structures (Krebs cycle, electron transport chain, matrix, inner membrane)

10. Review Answers Which molecule is the energy molecule of cells?
Which types of organisms perform cellular respiration?
Where does glycolysis occur?
What is broken down during glycolysis?
What is created as a result of glycolysis?
Where is aerobic respiration performed?
Name the 2 stages of respiration that take place in the mitochondria.
Which waste gas is created by the Kreb’s cycle?
How many ATP molecules are made during glycolysis?
How many ATP molecules are made during Kreb’s cycle?
How many ATP molecules are made during Electron transport chain?
How many ATP molecules are made in total?
ATP
Eukaryotes
Cell’s cytoplasm
Glucose
2 ATP and 2 3-carbon molecules (pyruvate)
Mitochondria
The Kreb’s Cycle & The Electron Transport Chain
CO2
2 ATP
2 ATP
32 ATP molecules (Up to 34 ATP molecules)
36 ATP molecules (Up to 38 ATP molecules)

11. 13)