Why oxygen is necessary for complete oxidation of glucose
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Oxygen is important in oxidative phosphorylation stage of aerobic respiration.
In oxidative phosphorylation hydrogen ions combine with oxygen to form water.
The NADH produced in the Krebs cycle carries hydrogen ions and high energy electrons.
The electrons pass along a respiratory chain using their energy to form ATP molecules.
Oxygen increases the production of ATP.
Oxygen combination with hydrogen ions and acceptance of electrons to from water, allows more hydrogen ions to be released from the electron career system.
This allows for formation of more energy in form of ATP.
In oxidative phosphorylation hydrogen ions combine with oxygen to form water.
The NADH produced in the Krebs cycle carries hydrogen ions and high energy electrons.
The electrons pass along a respiratory chain using their energy to form ATP molecules.
Oxygen increases the production of ATP.
Oxygen combination with hydrogen ions and acceptance of electrons to from water, allows more hydrogen ions to be released from the electron career system.
This allows for formation of more energy in form of ATP.
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1
The process of glycolysis refers to breaking down of glucose into two molecules of pyruvic acid.
Reasons:
Absence of Oxygen: The fermentation of lactic acid will occur when there is no oxygen. The pyruvic acid is then converted into lactic b. The pyruvic acid is also broken down into alcohol without the presence of oxygen.
Presence of Oxygen: During the Kerb’s cycle, acetyl CoA is formed from pyruvic acid when oxygen is present and is responsible for the complete oxidation of glucose.
Hence, oxygen is required for the complete oxidation of glucose.
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