Acetyl CoA combine with oxalo-acetate in presence of condensing enzyme citrate synthetase to form 6-C compound calleda)Malic acidb)Tartaric acidc)Pyruvic acidd)Citric acidCorrect answer is option 'D'. Can you explain this answer?

Question

Answer

Citric acid C6H8O7

Answer

Answer

There is no as such kind of explaination but as given in krebs or TCA cycle its first stable product citric acid

Answer

Formation of Citric Acid

The combination of acetyl CoA and oxaloacetate in the presence of the condensing enzyme citrate synthase leads to the formation of a 6-carbon compound called citric acid. This process occurs in the first step of the citric acid cycle, also known as the Krebs cycle or the tricarboxylic acid cycle.

The Citric Acid Cycle

The citric acid cycle is a metabolic pathway that takes place in the mitochondria of cells. It is an essential part of cellular respiration, which is the process by which cells generate energy from glucose and other molecules.

The cycle begins with the condensation of acetyl CoA and oxaloacetate. This reaction is catalyzed by the enzyme citrate synthase. The resulting compound, citric acid, is a 6-carbon molecule.

Function of Citric Acid Cycle

The citric acid cycle serves multiple functions in cellular respiration:

1. Energy Production: The cycle generates energy-rich molecules such as NADH and FADH2, which are used in the electron transport chain to produce ATP, the cell's main energy currency.

2. Carbon Skeletons: The cycle provides carbon skeletons for the synthesis of other molecules, including amino acids, nucleotides, and fatty acids.

3. Electron Carriers: The cycle regenerates electron carriers (NAD+ and FAD) that are used in glycolysis and oxidative phosphorylation.

Importance of Citric Acid

Citric acid is an important intermediate in cellular metabolism. It acts as a key molecule in the citric acid cycle, linking various metabolic pathways and facilitating energy production. Additionally, citric acid is used in various industries as a food additive, preservative, and cleaning agent.

Conclusion

In conclusion, the combination of acetyl CoA and oxaloacetate in the presence of the enzyme citrate synthase leads to the formation of citric acid, a 6-carbon compound. This is the first step of the citric acid cycle, which plays a crucial role in energy production and carbon metabolism in cells.

Answer

Acetyl CoA (2-carbon compound) combines with oxaloacetate (4-carbon compound) in the presence of condensing enzyme citrate synthase to form a tricarboxylic 6-carbon compound called citric acid. It is the first product of kerbs' cycle. CoA is liberated.

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