KROK 1 2018 – 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. Pepsin
- B. Urease
- C. Amylase
- D. Aspartate aminotransferase
- E. Carbamoyl phosphate synthetase
Hint
Rule out digestive and bacterial enzymes first, then ask which hepatic enzyme is needed to bring free ammonia into the urea pathway.
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