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Physiology Misc. d162a2c2

Because free ammonia in the blood is toxic to the body, it is transported in which of the following non-toxic forms?

A
Histidine and urea
B
Phenylalanine and methionine
C
Glutamine and urea
D
Lysine and glutamine
High-Yield Explanation
Ans. C. Glutamine and ureaBoth urea and glutamine play an important role in the storage and transport of ammonia in the blood. Histidine, phenylalanine, methionine, and lysine are not involved in ammonia transport.

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