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4 votes
Which structure of the excretory system in humans is responsible for converting ammonia into urea?

A. Liver
B. Lungs
C. Skin
D. Kidneys

1 Answer

4 votes

Answer: A. Liver

Ammonia is a toxic byproduct of metabolic activities occurring in the human body. The ammonia is converted into urea a less harmful metabolite by mitochondrial cells of liver. The urea enters into the blood circulation. The blood containing urea is filtered by kidney and excreted along with other components of urine.

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User Dali
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