Chapter 26.4, Problem 5QQ

Interpretation Introduction

Interpretation: To identify the biosynthetic source of the two nitrogen atoms in the urea molecule.

Concept introduction: A urea cycle is a cyclic biochemical pathway that involves the production of urea using ammonium ions and aspartate molecules as nitrogen sources. The reactants in the formation of carbamoyl phosphate are ammonium ion, water, and carbon dioxide.