Biochemistry The two nitrogen atoms that are incorporated into the urea cycle. The source of the nitrogen is A Glutamate & Aspaate B Aspaate & Arginine C Aspaate & NH3 D Glutamate & NH3 💡 Explanation The two nitrogen atoms that are incorporated into the urea cycle. The source of the nitrogen is ✓ Correct Answer: C. Aspaate & NH3