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Durning the Krebs cycle, pyruvic acid is broken down into carbon dioxide in a series of energy-extracting reactions.

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11y ago
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1mo ago

Pyruvic acid is first converted to acetyl-CoA before entering the Krebs cycle. Acetyl-CoA combines with oxaloacetate to form citric acid, which initiates the Krebs cycle. Throughout the cycle, acetyl-CoA is oxidized to produce energy in the form of ATP, NADH, and FADH2.

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How is pyruvic acid used in the Kreb's cycle?

the krebs cycle uses the two molecules of pyruvic acid formed in glycolysis and yields high energy molecules of NDA & FADH & ATP

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Q: How is pyruvic acid used in the Kreb's cycle?
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Is the product of glycolysis that enters the Krebs cycle?

The product of glycolysis that enters the Krebs cycle is pyruvate, which is converted into acetyl-CoA before entering the Krebs cycle.


Where do the reactants for the Krebs cycle come from?

The reactants for the Krebs cycle come from the breakdown of carbohydrates, fats, and proteins into acetyl-CoA, which is then used as the starting molecule for the cycle. These molecules are broken down by various metabolic pathways in the cell to produce the necessary substrates for the Krebs cycle.


How is the breakdown of pyruvic acid related to the citirc acid cycle?

It is the carboxylate ion of pyruvic acid, called pyruvate (3C), which passes into the mitochondrial matrix; it loses 1 carbon (as CO2) in the link reaction, & the remaining 2C product enters the citric acid cycle for final breakdown of the carbon chain.


What are the 3 major steps in respiration?

The three major steps in respiration are glycolysis, the Krebs cycle (citric acid cycle), and oxidative phosphorylation (electron transport chain). Glycolysis breaks down glucose into pyruvate, which enters the Krebs cycle to produce energy carriers. The energy carriers are then used in oxidative phosphorylation to generate ATP, the cell's main source of energy.


Krebs cycle and glycolysis?

Glycolysis is the initial metabolic pathway that breaks down glucose into pyruvate. This pyruvate is then used in the Krebs cycle (also known as the citric acid cycle) to produce ATP through the oxidation of acetyl CoA. The Krebs cycle takes place in the mitochondria and generates high-energy molecules such as NADH and FADH2, which feed into the electron transport chain for further ATP production.

Related questions

Can pyruvic acid use in the Krebs cycle?

Yes, pyruvic acid is a key molecule in the Krebs cycle. It is derived from the breakdown of glucose during glycolysis and enters the mitochondria where it is converted into acetyl-CoA. Acetyl-CoA then enters the Krebs cycle to be further metabolized for energy production.


What does the Krebs make?

During the Krebs cycle, pyruvic acid from glycolysis is used to make carbon dioxide, NADH, ATP, and FADH2.


What does kreb cycle make?

During the Krebs cycle, pyruvic acid from glycolysis is used to make carbon dioxide, NADH, ATP, and FADH2.


The pyruvic acid that accumulates as a result of glycolysis can be converted to?

The pyruvic acid that accumulates as a result of glycolysis can be converted to acetyl-CoA through the process of pyruvate decarboxylation. Acetyl-CoA can then enter the citric acid cycle to generate ATP through oxidative phosphorylation.


Is the product of glycolysis that enters the Krebs cycle?

The product of glycolysis that enters the Krebs cycle is pyruvate, which is converted into acetyl-CoA before entering the Krebs cycle.


Where do the reactants for the Krebs cycle come from?

The reactants for the Krebs cycle come from the breakdown of carbohydrates, fats, and proteins into acetyl-CoA, which is then used as the starting molecule for the cycle. These molecules are broken down by various metabolic pathways in the cell to produce the necessary substrates for the Krebs cycle.


How is the breakdown of pyruvic acid related to the citirc acid cycle?

It is the carboxylate ion of pyruvic acid, called pyruvate (3C), which passes into the mitochondrial matrix; it loses 1 carbon (as CO2) in the link reaction, & the remaining 2C product enters the citric acid cycle for final breakdown of the carbon chain.


What molecule moves into the Krebs cycle?

Pyruvate -> Acetyl CoA -> Citrate which is used by the Krebs or Citric Acid Cycle.


How is glycolosis different from the breakdown of pyruvic acid?

Glycolysis is the breakdown of glucose to give pyruvic acid and energy. Pyruvic acid is then used for different reactions, the most important one being Kreb's cycle.


What are 3 major steps in respiration?

Aerobic Respiration Occurs in 3 Major StagesGlycolysis - breaks glucose down into 2 molecules of pyruvic acid (a 3-C cmpd). This occurs in the cytoplasmKrebs Cycle (Citric Acid Cycle) - breaks pyruvic acid down into CO2. Occurs in mitochondria - O2 requiredElectron Transport System - transfers e that were removed from Krebs intermediates - Occurs in mitochondria and O2 is used


What are the 3 major steps in respiration?

The three major steps in respiration are glycolysis, the Krebs cycle (citric acid cycle), and oxidative phosphorylation (electron transport chain). Glycolysis breaks down glucose into pyruvate, which enters the Krebs cycle to produce energy carriers. The energy carriers are then used in oxidative phosphorylation to generate ATP, the cell's main source of energy.


Are Krebs cycle and tricarboxylic acid interchangeable terms?

Yes, Krebs cycle and tricarboxylic acid cycle are interchangeable terms used to describe the same metabolic pathway in the cell that generates energy through the oxidation of acetyl-CoA derived from carbohydrates, fats, and proteins. It is named after the scientist who discovered it, Sir Hans Krebs.