Cellular Respiration
1. Glycolysis
Glucose
Cellular Respiration is the process that releases energy by breaking down glucose and other food molecules in
the presence of oxygen.
2 ATP
2 ADP
2 Triose
Phosphate
4 ADP
4 ATP
2 NAD+ 2 NADH
Glycolysis is the process In which one
molecule of glucose is broken in half,
producing two molecules of pyruvic
acid, a 3-Carbon Compound
Acetyl-CoA
H+
FAD
H+
NAD+
4- Carbon
Compound
2. Krebs Cycle
e-
2 NADH 2 NAD+
ATP
4 H+ + O 2
2 H2O
The electron transport chain uses the high-energy
electrons from the Krebs cycle to convert ADP into ATP.
ADP
NAD+ NADH
ATP
H+
ATP Synthase
NADH
5- Carbon
Compound
ADP
FAD
CO 2
Citric Acid
FADH2
H+
H+
e-
FADH2
CoA
CO 2
NAD+
H+
H+
2 NADH
NADH
3. Electron Transport Chain
H+
2 Pyruvic
Acid
2 NAD+
CoA
Coenzyme A
CO 2
During the Krebs cycle, pyruvic acid is broken
down into carbon dioxide in a series of energyextracting reactions.
Cellular Respiration
Cellular Respiration is the process that releases energy by breaking down glucose and other food molecules in
the presence of oxygen.
1. Glycolysis
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Glycolysis is the process In which one
molecule of glucose is broken in half,
producing two molecules of pyruvic
acid, a 3-Carbon Compound
____
_______
_____
H+
H+
H+
e-
____
_______
_______
H+
2. Krebs Cycle
e-
_____
The electron transport chain uses the high-energy
electrons from the Krebs cycle to convert ADP into ATP.
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____
H+
_____ _____
ATP Synthase
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_______
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________
___
_____
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_____ ____
______ ______
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_____
H+
H+
_______
____
_____
3. Electron Transport
H+
______
______
___
_______
_____
_____
____
During the Krebs cycle, pyruvic acid is broken
down into carbon dioxide in a series of energyextracting reactions.
Cellular Respiration
Cellular Respiration is the process that releases energy by breaking down glucose and
other food molecules in the presence of oxygen.
Glycolysis
Cytoplasm
Glucose
2 NADH
2 ATP
4 ATP
2 ATP
2 Pyruvic Acid
Krebs Cycle & ETC
Mitochondria
2 C2
2 NADH
6 ATP
2 ATP
Krebs
Cycle
2 NADH
18 ATP
4 ATP
Total number of ATP molecules formed during cellular respiration
NOTES:
Glycolysis- glucose ! pyruvate, takes place in cytoplasm and produces 2 ATP
Electrons carriers from glycolysis (NADH) to to ETC
When pyruvate brakes down further and enters the krebs cycle which takes place in Mitochondria, produces 2
atp. Electron carriers go to ETC (NADH and FADH). The ETC is also located in the Mitochondria and produces 32 ATP
36 ATP
Cellular Respiration
Cellular Respiration is the process that releases energy by breaking down glucose and
other food molecules in the presence of oxygen.
_______
_________
____________
______________
Krebs
Cycle
Total number of ATP molecules formed during cellular respiration
NOTES:
0
