This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolism of protein and amino acid, Subject name: Biochemistry
Carbamoyl phosphate is used in 
Select and explain. 
A. Urea, B. Uric acid, C. Pyruvic acid, D. Stearic acid
A: Urea
Answer: A: Urea 
Explanation: One molecule of ammonia and co2 condenses to form Carbomy phoshate in presence of 2 molecules of ATP and carbomyl phosphate synthetase II enzyme. this carbomyl phoshate is transferred to NH2 group of ornitine to form Citrulline in urea cycle.Ref: DM Vasudevan - Textbook of Biochemistry, 7th edition, page no: 203