Goal 13: Urea

Question 1

Urea cycle reactions with what enzymes only happen in the mitochondria? Where are the other reactions done?

Answer 1

• Carbamoyl Synthase 1 and Orinithine Transcarbamoylase

- rest are done in the cytosol

Question 2

Where is urea synthesized? What is degraded to get urea?

Answer 2

• liver

- proteins are broken down into pieces, the NH4 (ammonium) part is disposed as urea