Question

Describe the pathway taken by a molecule of urea, from the liver of a mammal until it reaches the soil.

Answer 1

Answer:

Elimination of ammonia

Ammonia can be produced by the break-down of amino acids, or by the gut bacteria in humans. If the level of ammonia in the blood becomes too high, then it becomes toxic to the brain. The urea cycle removes ammonia from the blood and makes urea, which is eventually excreted as urine.

Explanation:

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