The Utilization of Ammonia for Synthesis of the Alpha-Amino Group

question 161

Multiple Choice

The utilization of ammonia for synthesis of the alpha-amino group of non-essential amino acids is

• A) dependent upon the action of glutamate dehydrogenase.
• B) achieved by reversal of the urea cycle.
• C) mediated by carbamoyl phosphate.
• D) effected through the intermediate of carbamino acids.
• E) dependent upon the intestinal bacterial flora.