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The Citric Acid Cycle (Kreb's or Tri-carboxylic Acid Cycle) is the part of cellular respiration in which Pyruvic Acid is processed until a glucose molecule is made. * This 2-carbon fragment is donated to a molecule of oxaloacetic acid. * The resulting molecule of citric acid (which gives its name to the process) undergoes the series of enzymatic steps shown in the diagram. * The final step regenerates a molecule of oxaloacetic acid and the cycle is ready to turn again. Summary: * Each of the 3 carbon atoms present in the pyruvate that entered the mitochondrion leaves as a molecule of carbon dioxide (CO2). * At 4 steps, a pair of electrons (2e-) is removed and transferred to NAD+ reducing it to NADH + H+. * At one step, a pair of electrons is removed from succinic acid and reduces FADto FADH2. The electrons of NADH and FADH2 are transferred to the electron transport chain.
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What stage of cellular respiration yield the most ATP?
Electron transport chain. During electron transport chain 34 ATP molecules are produced whereas glycolysis and citric acid cycle yield 4 ATPs (2 during glycolysis and 2 during citric acid cycle).
What is the coenzyme that attaches to a 2-carbon acetate molecule during the preparatory reaction for the citric acid cycle?
The coenzyme that attaches to a 2-carbon acetate molecule during the preparatory reaction for the citric acid cycle is coenzyme A (CoA). This reaction forms acetyl-CoA, which serves as the key substrate for the citric acid cycle, linking glycolysis and the citric acid cycle. Acetyl-CoA is essential for the metabolism of carbohydrates, fats, and proteins.
Light energy is trapped and converted into chemical energy during the citric acid cycle true or false?
False. Light energy is converted into chemical energy during photosynthesis, not the citric acid cycle. The citric acid cycle, also known as the Krebs cycle, is a series of chemical reactions that occur in the mitochondria and are involved in the production of ATP from the oxidation of acetyl-CoA.
Why is the Citric Acid cycle called a cycle?
The Citric Acid cycle is called a cycle because it is a series of chemical reactions that regenerates its starting molecule, oxaloacetate, at the end. This allows the cycle to continue repeatedly as long as there are substrates available.
Carbon dioxide is released during what stage of cellular respiration?
Carbon dioxide is released during the Krebs cycle (also known as the citric acid cycle) in cellular respiration. This cycle takes place in the mitochondria of the cell and is responsible for generating energy in the form of ATP.
Citric acid forms during which part of cellular respiration?
Citric acid is formed during the citric acid (Krebs) cycle, which is the second stage of cellular respiration. In this cycle, acetyl-CoA is oxidized to produce ATP, CO2, and NADH in a series of reactions that take place in the mitochondria.
What happens to the pyruvic acid before entering the citric acid cycle?
I do not know the answer Jaylen
What happens after glycolysis during cell respiration?
The 2 pyruvate molecules created in Glycolysis are oxidised to form Acytl-CoA. This then enters the Citric Acid Cycle. After the Citric Acid Cycle comes the electron-transfer chain, which is where the majority of ATP are produced during respiration.
What is the citric acid cycle also known as?
Krebs cycle (aka citric acid cycle, aka tricarboxylic acid cycle)
What stage of cellular respiration yield the most ATP?
Electron transport chain. During electron transport chain 34 ATP molecules are produced whereas glycolysis and citric acid cycle yield 4 ATPs (2 during glycolysis and 2 during citric acid cycle).
What are the two other names for Krebs cycle?
Citric Acid Cycle TCA Cycle (tricarboxcylic acid cycle).
How did the citric acid cycle get its name what is the origin of citric acid cycle?
The conguate base of citric acid - citrate - is an important intermediate in the cycle. This is where the name "Citric Acid Cycle" comes from. It is also known as the Tricarboxylic Acid Cycle - as it involves 3 carbon acids, or the Krebs Cycle after Hans Adolf Krebs - who developed the complexities of the cycle.
What is the coenzyme that attaches to a 2-carbon acetate molecule during the preparatory reaction for the citric acid cycle?
The coenzyme that attaches to a 2-carbon acetate molecule during the preparatory reaction for the citric acid cycle is coenzyme A (CoA). This reaction forms acetyl-CoA, which serves as the key substrate for the citric acid cycle, linking glycolysis and the citric acid cycle. Acetyl-CoA is essential for the metabolism of carbohydrates, fats, and proteins.
What two molecules combine to produce citric acid in the citric acid cycle?
Acetyl-CoA and oxaloacetate combine to produce citric acid (or citrate) in the citric acid cycle. This is the first step in the cycle, also known as the condensation step.
Light energy is trapped and converted into chemical energy during the citric acid cycle true or false?
False. Light energy is converted into chemical energy during photosynthesis, not the citric acid cycle. The citric acid cycle, also known as the Krebs cycle, is a series of chemical reactions that occur in the mitochondria and are involved in the production of ATP from the oxidation of acetyl-CoA.
What are the Outputs of the citric acid cycle?
The net inputs for citric acid cycle are Acetyl CoA, NADH, and ADP. The Net outputs for the citric acid cycle are ATP, NAD, and carbon dioxide.
Why is the Citric Acid cycle called a cycle?
The Citric Acid cycle is called a cycle because it is a series of chemical reactions that regenerates its starting molecule, oxaloacetate, at the end. This allows the cycle to continue repeatedly as long as there are substrates available.
