Which of the following biomolecules is common | vedclass

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(D) The correct answer is $(d)$. Carbohydrates are usually first converted into glucose before they are used for respiration.Fats are broken down into

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Acetyl CoA

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(D) The correct answer is $(d)$. Carbohydrates are usually first converted into glucose before they are used for respiration.Fats are broken down into glycerol and fatty acids. Fatty acids are degraded to acetyl CoA to enter the respiratory pathway,while glycerol is converted to $3-$phosphoglyceraldehyde $(PGAL)$.Proteins are degraded by proteases into individual amino acids. After deamination,these amino acids enter the respiratory pathway at different stages,such as pyruvate,acetyl CoA,or intermediates of the Krebs' cycle.Thus,acetyl CoA acts as a common metabolic intermediate for the breakdown of all three major biomolecules (carbohydrates,proteins,and fats),making the respiratory pathway an amphibolic pathway.

Which of the following biomolecules is common to respiration-mediated breakdown of fats,carbohydrates,and proteins?

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