KROK 1 2010 – Question 66 · KROK (Medicine) · Biological Chemistry
A cerebral trauma caused increased ammonia generation. What amino acid participates in the excretion of ammonia from the cerebral tissue?
- A. Tyrosine
- B. Tryptophan
- C. Glutamic
- D. Valine
- E. Lysine
Hint
Think about how nervous tissue detoxifies free ammonia: which amino acid takes up the extra nitrogen so that it can leave the brain as a harmless compound?
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