The two key molecules in the metabolism and interconversion of carbohydrates,proteins,and fats are

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Pyruvic acid is a key molecule in the metabolism of carbohydrates and can be converted to either lactic acid or acetyl CoA. Acetyl CoA is also a key molecule in the metabolism of fats and can enter the citric acid cycle to generate ATP. Proteins can be broken down into amino acids, which can also enter into the metabolism of carbohydrates and fats through the conversion of certain amino acids to pyruvate or acetyl CoA. Therefore, pyruvic acid and acetyl CoA are the two key molecules involved in the interconversion of carbohydrates, proteins, and fats.

The Two Key Molecules in the Metabolism and Interconversion of Carbohydrates,proteins,and