Multiple choice

Which of the following compounds is present in urine as a product of protein metabolism?

  1. Glycolic acid

  2. Glyoxal

  3. Guaiacol

  4. Guanidine
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Guanidine is a crystalline compound of strong alkalinity formed by the oxidation of guanine. It is used in the manufacture of plastics and explosives. It is found in urine as a normal product of protein metabolism.

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