Describe The Relationship Between Glycolysis And Krebs Cycle
Skeletal muscle fibres can change from high activity, in which a high amount of ATP is used to a low level of activity, with only a small amount being used. The ATP in the muscle fibres is enough to allow muscle contractions for a few seconds. When muscle contraction continues more ATP is needed.
Aerobic glycolysis
Oxidation of glucose requires a different enzyme and a coenzyme for each step. Coenzyme A is used at this stage in cellular respiration, which is derived from from a B vitamin called pantothenic acid. During the transitional between glycolysis and the Krebs cycle, pyruvic acid begins to prepare for entry into the cycle. The enzyme pyruvate dehydrogenase, changes pyruvic acid to a 2-carbon fragment called an acetyl group by removing a carbon dioxide molecule. Decarboxylation is the substance that causes the loss of a carbon dioxide molecule. In cellular respiration this is the first action that releases CO2. Pyruvic acid is also oxidized during this reaction.
Krebs cycle …show more content…
The Krebs cycle, and the electron transport chain reactions, are the process that produces ATP, carbon dioxide, water, and heat.
When the acetyl group attaches to coenzyme A and the pyruvic acid has undergone decarboxylation, the acetyl-CoA enzyme is prepared to enter the Krebs cycle.
The molecule formed when acetyl group joins the cycle is known as the citric acid cycle, these reactions occur in the matrix of mitochondria. Decarboxylation reactions release CO2 and oxidation-reduction reactions.
Chemical energy in transferred in the form of electrons by oxidation-reduction to two coenzymes NAD+ and FAD. The coenzymes are reduced when pyruvic acids are oxidized.
The cycle undergoes a complete turn when an acetyl CoA molecule enters the Krebs cycle, starting with the production of citric acid and ending with oxaloacetic acid being
Aerobic glycolysis
Oxidation of glucose requires a different enzyme and a coenzyme for each step. Coenzyme A is used at this stage in cellular respiration, which is derived from from a B vitamin called pantothenic acid. During the transitional between glycolysis and the Krebs cycle, pyruvic acid begins to prepare for entry into the cycle. The enzyme pyruvate dehydrogenase, changes pyruvic acid to a 2-carbon fragment called an acetyl group by removing a carbon dioxide molecule. Decarboxylation is the substance that causes the loss of a carbon dioxide molecule. In cellular respiration this is the first action that releases CO2. Pyruvic acid is also oxidized during this reaction.
Krebs cycle …show more content…
The Krebs cycle, and the electron transport chain reactions, are the process that produces ATP, carbon dioxide, water, and heat.
When the acetyl group attaches to coenzyme A and the pyruvic acid has undergone decarboxylation, the acetyl-CoA enzyme is prepared to enter the Krebs cycle.
The molecule formed when acetyl group joins the cycle is known as the citric acid cycle, these reactions occur in the matrix of mitochondria. Decarboxylation reactions release CO2 and oxidation-reduction reactions.
Chemical energy in transferred in the form of electrons by oxidation-reduction to two coenzymes NAD+ and FAD. The coenzymes are reduced when pyruvic acids are oxidized.
The cycle undergoes a complete turn when an acetyl CoA molecule enters the Krebs cycle, starting with the production of citric acid and ending with oxaloacetic acid being