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What are the substrates and products of pyruvate oxidation?
The substrate of pyruvate oxidation is pyruvate, a three-carbon molecule derived from glycolysis. The products of pyruvate oxidation are acetyl-CoA, which is a two-carbon molecule, and carbon dioxide. This process occurs in the mitochondria and is a crucial step in the aerobic respiration pathway.
What is released when pyruvate is broken down?
When pyruvate is broken down in the presence of oxygen, it is converted into acetyl-CoA, releasing carbon dioxide and forming NADH molecules in a process called pyruvate oxidation. This acetyl-CoA then enters the citric acid cycle to generate more NADH, FADH2, and ATP.
Which is NOT a pathway in the oxidation of glucose?
Glycolysis is NOT a pathway in the oxidation of glucose. Glycolysis is actually the first step in the breakdown of glucose and serves to produce pyruvate, which can then enter either the aerobic citric acid cycle or anaerobic fermentation pathways for further oxidation.
Even though plants carry on photosynthesis plant cells still use their mitochondria for oxidation of pyruvate When and where will this occur?
Plant cells use their mitochondria for the oxidation of pyruvate during cellular respiration, which occurs in the presence of oxygen. This process takes place in the mitochondria of plant cells to generate ATP for energy production, even though photosynthesis is the main process for creating energy in plants.
Describe a pathway used for degradation of carbohydrates?
Carbohydrates are broken down through a process called glycolysis, which involves a series of enzymatic reactions that convert glucose to pyruvate. Pyruvate can then enter the citric acid cycle to generate energy through the oxidation of acetyl-CoA. In the absence of oxygen, pyruvate can be converted to lactate or ethanol through fermentation pathways.
What is the exact location of pyruvate oxidation in the mitochondrion?
Pyruvate oxidation takes place in the mitochondrial matrix. Here, pyruvate is converted into acetyl-CoA by the pyruvate dehydrogenase complex, which is a critical step in aerobic respiration.
What are the substrates and products of pyruvate oxidation?
The substrate of pyruvate oxidation is pyruvate, a three-carbon molecule derived from glycolysis. The products of pyruvate oxidation are acetyl-CoA, which is a two-carbon molecule, and carbon dioxide. This process occurs in the mitochondria and is a crucial step in the aerobic respiration pathway.
Is Co2 released during oxidation of pyruvate to acetyl CoA?
Yes, during the oxidation of pyruvate to acetyl CoA in the mitochondria, CO2 is released through decarboxylation reactions. This process is part of the pyruvate dehydrogenase complex, where pyruvate is converted to acetyl CoA, releasing CO2 as a byproduct.
Where in the cell is pyruvate broken down?
Pyruvate is broken down in the mitochondria of the cell through a process called aerobic respiration. Pyruvate is converted into acetyl-CoA, which then enters the citric acid cycle to produce ATP, the cell's main energy source.
What is the purpose of pyruvate oxidation?
The purpose of pyruvate oxidation is to convert pyruvate, a product of glycolysis, into acetyl-CoA in the mitochondria. This process generates NADH and releases CO2 as a byproduct. Acetyl-CoA then enters the citric acid cycle to produce more reducing equivalents for ATP production.
What are the products of pyruvate oxidation?
The products of pyruvate oxidation are Acetyl-CoA, NADH, and carbon dioxide. This process occurs in the mitochondria and is a key step in cellular respiration to generate energy.
Where is pyruvate oxidation in bacteria?
Pyruvate oxidation in bacteria occurs in the cytoplasm of the cell. Pyruvate is converted into acetyl-CoA by the enzyme pyruvate dehydrogenase complex, which then enters the TCA cycle in the bacterial cell's cytoplasm or mitochondria.
Which of the following is not a possible fate of the glucose which is taken into cells?
Oxidation to pyruvate via gluconeogenesis
Where is pyruvate dehydrogenase complex located in prokaryotes?
In prokaryotes, the pyruvate dehydrogenase complex is located in the cytoplasm.
What process occurs before the Krebs cycle?
The formation of acetyl-CoA
Does pyruvate oxidation occur in the cytoplasm?
No, pyruvate oxidation does not occur in the cytoplasm. It takes place in the mitochondria. Pyruvate produced in the cytoplasm during glycolysis is transported into the mitochondria for oxidation to acetyl-CoA.
Carbon diocide is released during which stages of cellular respiration?
oxidation of pyruvate to acetyl CoA and the citric acid cycle
