By a simple transamination reaction, intermediates in glycolysis or the Kreb's Cycle can be converted in one step to all of these amino acids, except :
A) Alanine.
B) Aspartic Acid
C) Glutamic Acid.
D) Serine.
E) All of these amino acids are only one step away from the major metabolic pathways.

Question

Quizplus · Accepted Answer

Serine's synthesis from intermediates in glycolysis or the Kreb's Cycle is not a simple one-step transamination reaction; it involves a more complex multi-step pathway. Alanine, aspartic acid, and glutamic acid can be directly formed from pyruvate, oxaloacetate, and α-ketoglutarate, respectively, through simple transamination reactions.

By a Simple Transamination Reaction, Intermediates in Glycolysis or the Kreb's