Question

question 5 of 20 :
select the best answer for the question.

1. proteins, which are compounds made of nitrogen - rich amino acids, create waste products in the body of animals that must be eliminated. which toxic compound is the primary concern of animal waste systems?

a. nitrogen
b. ammonia
c. urea
d. ammonium
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Explanation:

When proteins are metabolized in animal bodies, the breakdown of nitrogen - rich amino acids produces waste. Ammonia ($\ce{NH_3}$) is a toxic compound that is the primary concern of animal waste systems. Nitrogen is an element, not a toxic waste compound in the context of protein metabolism waste. Urea is a less - toxic compound that is produced from ammonia in the urea cycle (in mammals, for example) to safely excrete nitrogen - containing waste. Ammonium ($\ce{NH_4^+}$) is an ion form, and ammonia is the more toxic and primary waste compound from protein breakdown that needs to be dealt with by the waste system.

Answer:

B. Ammonia