The Urea Cycle

Question

The urea cycle
A) Is used by the liver to make urea from ammonia
B) Condenses am monia with bicarbonate to make carbamoyl phosphate
C) Uses aspartic acid to make arginosuccinate
D) Has citrulline as an intermediate
E) All of the above are true

Accepted Answer

All of the choices correctly describe aspects of the urea cycle: it occurs in the liver to detoxify ammonia by converting it to urea, involves the condensation of ammonia with bicarbonate to form carbamoyl phosphate, uses aspartic acid to produce arginosuccinate, and includes citrulline as an intermediate.