The reaction of cellular respiration and fermentation substrate level phosphorylation occur in both glycolysis and the citric acid cycle.
This phosphorylation occurs in the cytoplasm of cell and in mitochondria. When the phosphorylation inside the mitochondria, it occur during Krebs cycle. In this reaction the molecules are broken down in presence of oxygen to produce energy.
In cytoplasm, the reaction occur during the glycolysis. It is the reaction to add a phosphate group to a molecule that is derived from ATP.
Krebs cycle this is also known as citric acid cycle (CAC). This is the reactions in which oxidation of acetic acid provides energy for storage in phosphate bonds.
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