Carbohydrate Metabolism Cycles:
1. Glycogenesis
2. Glycogenolysis
3. Glycolysis
4. Pentose Shunt Cycle
5. Uronic Acid Cycle
6. Kreb's Cycle
Cycle Name
|
Definition
|
Position /
Location /
Site
|
Product
|
1. Glycogenesis
|
It is the formation of glycogen in liver and muscles.
|
occur first in the body then Glucose converted into Glycogen in liver cells.
|
Glycogen
|
2. Glycogenolysis
|
It is the break down of Glycogen into Glucose in liver and Lactic acid in muscles.
|
occur in liver, muscles and blood.
|
Glucose
|
3. Glycolysis
|
It is the oxidation of Glucose to Pyruvate in presence of oxygen or Lactate in absence of Oxygen.
Note! To memorize them better => Pyruvate in Presence of Oxygen
|
occur in cytoplasm of all tissue cells
|
Pyruvate in presence of Oxygen, and Lactate in absence of Oxygen
|
4. Kreb's Cycle
|
It is a series of reactions in which Acetyle-CoA is oxidized into CO2 , H2O
and energy.
|
occur in Mitochondria
|
It forms Citrate and end by Oxaloacetate
|
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