Precursors for the biosynthesis of the pyrimidine ring system include:

Question

Quizplus · Accepted Answer

The biosynthesis of the pyrimidine ring system begins with the synthesis of carbamoyl phosphate, which is formed from bicarbonate, ATP, and glutamine. Aspartate is then condensed with carbamoyl phosphate to form N-carbamoyl-L-aspartate, which undergoes further reactions to ultimately form the pyrimidine ring. Therefore, choice A (carbamoyl phosphate and aspartate) is the correct precursor for the biosynthesis of the pyrimidine ring system.

Precursors for the Biosynthesis of the Pyrimidine Ring System Include