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What enzyme is responsible for aerobic respiration?
There are very many enzymes involved. A few from glycolysis are: hexokinase and glucokinase, phosphohexose isomerase, phosphofructokinase, pyruvate kinase; from pyruvate decarboxylation are pyruvate dehydrogenase phosphatase and pyruvate dehydrogenase kinase; and a few from the Kreb's cycle are: aconitase, alpha-ketoglutamate dehydrogenase, succinate thiokinase, and fumarase.
What enzyme converts pyruvate into acetyl-CoA?
The enzyme that converts pyruvate into acetyl-CoA is pyruvate dehydrogenase. This multienzyme complex is responsible for catalyzing the conversion of pyruvate into acetyl-CoA, which is a key step in the metabolism of carbohydrates to produce energy.
Which are products of pyruvate dehydrogenase?
Pyruvate dehydrogenase complex react with pyruvate to form acetyl-CoA
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 is pyruvate dehydrogenase complex located in prokaryotes?
In prokaryotes, the pyruvate dehydrogenase complex is located in the cytoplasm.
Name the two step process where pyruvate is converted to a two carbon compound releasing carbon dioxide. Then the electrons are transferred from a molecule of NADH to the two carbon compound producing?
Pyruvate decarboxylation -> Acetaldehyde reduction The product is ethanol. Pyruvate decarboxylation is performed by pyruvate decarxylase with cofactor thiamine pyrophosphate, and the product, acetaldehyde, is reduced by NADH. (Pyruvate decarboxylase is NOT the same as the pyruvate dehydrogenase complex in cellular respiration. Though pyruvate dehydrogenase also decarboxylates pyruvate, but the decarboxlated species immediately reacts with CoA to form acetyl-CoA).
Which of the following are true about lactate dehydrogenase?
Correct answer: I, II, III and IV
Which of the following correctly matches the phase of cellular respiration with its location in the cell?
Pyruvate dehydrogenase complex . . . mitochondrial matrix
Which enzyme is the most similar to Pyruvate dehyrogenase a citrate dyhydrogenase b malate dehydrogenase c succinate dehydrogenase d isocitrate dehydrogenase e alpha ketoglutarage dehydrogenase?
Alpha-ketoglutarate dehydrogenase is the most similar to Pyruvate dehydrogenase because both are part of the α-ketoglutarate dehydrogenase complex, involved in the citric acid cycle and share structural and functional similarities.
What does Decarboxylation of pyruvate produces?
decarboxylation means removal of co2 from the reaction
Where can pyruvate dehydrogenase be found?
Pyruvate dehydrogenase is typically found in the mitochondria of eukaryotic cells. It plays a critical role in the conversion of pyruvate into acetyl-CoA, a key step in the process of aerobic respiration.
In what phase of cellular respiration is not ATP produced?
Pyruvate dehydrogenase complex
