Intermembrane Space
Third: Electron Transport chain –Page 52-53
1-NADH and FADH2 from Krebs cycle release electrons and H+ protons.
2-H+ are used to form 32 ATP through ATP synthase.
3-H+ and electrons are used to form H2O.
* 1 NADPH gives
3 ATP
Mitochondrial Matrix
* 1 FADH2 gives 2 ATP
Note: Electron transport and chemiosmosis in cellular reparation are similar to these processes in photosynthesis.
Compare between Cellular respiration in Eukaryotic and Prokaryotic-page 53
Pyruvate
Eukaryotic
Prokaryotic
ATP
Net Total
1 Glucose molecule gives
1 Glucose molecule
gives 38 ATP
Electron
transport
location
Pyruvate
movement
Inner Mitochondrion
membrane
Plasma membrane
Enter Mitochondrion
Stay in the Cytoplasm
( no Mitochondrion)
36 ATP
ATP
This save 2 ATP
Anaerobic Respiration – page 53-54
 Anaerobic Respiration is used when there is no or not enough oxygen after Glycolysis. Also to remake NAD+.
 Fermentation is the example of Anaerobic Respiration. There is two main types of Fermentation:
Pyruvate
Enzyme
s
Lactic Acid + NAD+
Example 1: In Skeletal muscles when you do
hard exercise (you feel pain)
Example2: In some microorganisms that used
for food (yogurt, cheese and sour cream)
Pyruvate
Ethanol + Co2 + NAD+
Example: In yeast and some types of Bacteria
Differences
Pathway
Location
Photosynthesis
Anabolic pathway
( produce metabolic )
Chloroplast
( Thylakoid membrane and Stroma)
Energy
Stages
Energy stored in food
( carbohydrates like Glucose)
A- The Light dependent reactions : Electron transport
Chemiosmosis
B- The Light independent reactions : Calvin cycle
Type of the cell
Plant cells
Cellular Respiration
Catabolic pathway
( break down metabolic )
In the cytoplasm
And
Mitochondrial
Energy is released from food
( carbohydrates like Glucose)
A- Anaerobic Process : Glycolysis
B- Aerobic Respiration: Krebs cycle
Electron transport chain
All eukaryotic cells (Human, animal and plant cells)
Equation