Production of the enzymes that catalyze the reactions of the urea cycle can incr

Question

Production of the enzymes that catalyze the reactions of the urea cycle can increase or decrease according to the metabolic needs of the organism. High levels of these enzymes are associated with high-protein diets as well as starvation. This apparent paradox can be explained. An individual consuming a high-protein diet uses amino acids as metabolic . As the amino acid are converted to glucogenic or compounds, the amino groups are disposed of as, leading to increased through the cycle. During starvation, proteins (primarily from) are degraded to provide precursors for . from the protein-derived amino acids must be eliminated, which demands a high level of cycle activity.

Explanation / Answer

1. fuels/substrates.

2. intermediates

3.glucose

4.Urea

5.intermediates

6. Urea

7. Muscle

8.gluconeogenesis

9.Nitrogen

10.Urea

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