Amino Acid Metabolism — Flashcards

Pyruvate is converted to _____ via the enzyme alanine aminotransferase (ALT) (Cahill cycle)

The amino acid _____ is essential during periods of positive nitrogen balance

In the liver, glutamate may transfer its NH3 to _____, forming aspartate and -ketoglutarate

_____ cleaves the amino acid arginine into citrulline and nitric oxide

After organification of I2, coupling between _____ may combine to form thyroxine (T4)

Difference in proportion of _____ and Pheomelanin leads to difference in skin colours

_____ is a metabolic disorder associated with black-colored urine after prolonged exposure to air

_____ may be generated via the "VOMIT" pathway:V: valineO: odd-carbon fatty acidsM: methionine I: isoleucineT: threonine

_____ and Histidine are semi-essential amino acids

Once in target tissues, the enzyme _____ converts T4 to T3 by removing one atom of I2; a certain portion is also converted to reverse T3 (rT3) which is inactive