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Aerobic respiration and the Krebs cycle
1.
Aerobic respiration and the Krebs cycleLearning objectives
● Be able to follow the flow of carbon and energy through
the Krebs cycle
● Be able to reproduce the kerb cycle.
● Be able to describe the Krebs cycle as an oxidative
process.
2.
LINKREACTION
Pyruvate
Coenzyme A (CoA)
NAD
NADH
CO2
Acetyl CoA
● Remember glycolysis produces 2 molecules of pyruvate
per molecule of glucose.
3.
Yield fromLINK
REACTION
Input
Output
2 pyruvate
2 Acetyl CoA
2 CO2
2 NAD
2 NADH
4.
= 1 CARBON ATOMLINK
REACTION
PYRUVATE
CO2
ACETYL CoA
5.
Yield fromKREB
CYCLE
Input
Output
2 Acetyl Co A
4 CO2
6 NAD
KREB
CYCLE
6 NADH
2 FAD
2 FADH2
2 ADP
2 ATP
6.
First we are going tofollow the number of
carbon atoms
CO2
?
v
CO2
7.
Next we are going tofollow the relative
amount of energy in
the molecules.
CO2
?
Where is this energy
transferred?
v
CO2
8.
Where is this energytransferred?
NADH
CO2
NADH
v
NADH
FADH2
CO2
ATP
9.
Finally can you addthe chemical names
of the Krebs cycle.
10.
Yield fromKREB
CYCLE
Input
Output
2 Acetyl Co A
4 CO2
6 NAD
KREB
CYCLE
6 NADH
2 FAD
2 FADH2
2 ADP
2 ATP
11.
Aerobic respiration and the Krebs cycleLearning objectives
● Be able to follow the flow of carbon and energy through
the Krebs cycle
● Be able to reproduce the kerb cycle.
● Be able to describe the Krebs cycle as an oxidative
process.