Multiple choice

Which of the following amino acids plays its role in the urea cycle?

  1. Methionine

  2. Taurine

  3. Ornithine

  4. Histidine

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Ornithine is an amino acid that plays a role in the urea cycle. L-Ornithine is one of the products of the action of the enzyme arginase on L-arginine, creating urea. Therefore, ornithine is a central part of the urea cycle, which allows for the disposal of excess nitrogen.

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