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Hint: This reaction is very common to link between glycolysis and the citric acid cycle. This is in the process used to convert pyruvate to acetyl CoA is oxidative decarboxylation.
Complete answer:
The correct answer is Oxidative decarboxylation. Decarboxylation or oxidative decarboxylation reaction is the biochemical reaction which uses pyruvate in order to form acetyl-CoA, by releasing NADH, which is a reducing equivalent, and carbon dioxide upon decarboxylation. We can observe such kinds of reactions in many organisms which are in between glycolysis and the citric acid cycle.
Additional Information: - Pyruvate is converted to acetyl CoA in an intermediate process just before the citric acid cycle. Here, in oxidative decarboxylation, it reacts with coenzyme A. Here, it loses two of its oxygen and one of its carbons to form carbon dioxide. In addition, an NAD + molecule is reduced to form NADH. The resulting molecule is an acetyl-CoA molecule. The reaction in which a carboxylate group is removed and forms carbon dioxide is called Oxidative decarboxylation reactions. These reactions usually occur in biological systems and some of the examples are in the citric acid cycle. This type of reaction probably started early in the origin of life.
So, the correct answer is ‘oxidative Decarboxylation’.
Note: Aerobic respiration starts after the conversion of pyruvate to acetyl CoA. This conversion takes place in three steps: decarboxylation, reduction of NAD +, and binding of coenzyme A. This conversion begins with the decarboxylation (removal of $CO_2$) of pyruvate. Krebs cycle is also known as the tricarboxylic acid cycle or the citric acid cycle.
- When glucose levels are low in the cell, CoA is acetylated using acetate by acetyl-CoA synthetase.
- Krebs cycle occurs in the mitochondria of eukaryotic cells.
Complete answer:
The correct answer is Oxidative decarboxylation. Decarboxylation or oxidative decarboxylation reaction is the biochemical reaction which uses pyruvate in order to form acetyl-CoA, by releasing NADH, which is a reducing equivalent, and carbon dioxide upon decarboxylation. We can observe such kinds of reactions in many organisms which are in between glycolysis and the citric acid cycle.
Additional Information: - Pyruvate is converted to acetyl CoA in an intermediate process just before the citric acid cycle. Here, in oxidative decarboxylation, it reacts with coenzyme A. Here, it loses two of its oxygen and one of its carbons to form carbon dioxide. In addition, an NAD + molecule is reduced to form NADH. The resulting molecule is an acetyl-CoA molecule. The reaction in which a carboxylate group is removed and forms carbon dioxide is called Oxidative decarboxylation reactions. These reactions usually occur in biological systems and some of the examples are in the citric acid cycle. This type of reaction probably started early in the origin of life.
So, the correct answer is ‘oxidative Decarboxylation’.
Note: Aerobic respiration starts after the conversion of pyruvate to acetyl CoA. This conversion takes place in three steps: decarboxylation, reduction of NAD +, and binding of coenzyme A. This conversion begins with the decarboxylation (removal of $CO_2$) of pyruvate. Krebs cycle is also known as the tricarboxylic acid cycle or the citric acid cycle.
- When glucose levels are low in the cell, CoA is acetylated using acetate by acetyl-CoA synthetase.
- Krebs cycle occurs in the mitochondria of eukaryotic cells.
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