KROK 1 2018 – Question 83 · KROK (Medicine) · Biological Chemistry
During intensive muscle work there is a large amount of ammonia produced in the muscles. What amino acid plays the main role in the transportation of ammonia to the liver and participates in gluconeogenesis reactions?
- A. Aspartate
- B. Ornithine
- C. Arginine
- D. Alanine
- E. Lysine
Hint
Consider how working muscle disposes of nitrogen without releasing free ammonia and what the liver then makes from the carbon skeleton.
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