KROK 1 2017 – Question 51 · KROK (Medicine) · Biological Chemistry
Nitrogen is being excreted from the body mainly as urea. When activity of a certain enzyme in the liver is low, it results in inhibition of urea synthesis and nitrogen accumulation in blood and tissues. Name this enzyme:
- A. Carbamoyl phosphate synthetase
- B. Amylase
- C. Aspartate aminotransferase
- D. Pepsin
- E. Urease
Hint
Ask which liver enzyme sits at the very entrance of the pathway that converts free ammonia into urea, so that low activity of it blocks the whole sequence.
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