Multiple choice

Glycine is the smallest amino acid. Its metabolite is

  1. creatine

  2. glycocyamine

  3. phosphocreatine

  4. creatinine
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Glycocyamine is a metabolite of glycine in which the amino group has been converted into a guanidine. It is a direct precursor of creatine and is used as a supplement. However, the metabolism of creatine from glycocyamine in the liver causes a depletion of methyl groups.

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