What Happens to the Nitrogen from Excess Protein

Question

What happens to the nitrogen from excess protein?
A) It is stored as carbohydrate.
B) It is stored as fat.
C) It is eliminated through the urea cycle.
D) It is exhaled as N2gas.
E) It is stored to make future proteins

Accepted Answer

Excess nitrogen from protein is eliminated through the urea cycle. The body cannot store excess nitrogen, so it must be excreted. Urea is produced in the liver from ammonia generated by the breakdown of amino acids, and it is then excreted by the kidneys.