in-the-metabolic-pathway-for-the-synthesis-of-valine-leucine-and-isoleucine-what

Question

In the metabolic pathway for the synthesis of valine, leucine, and isoleucine, what are the initial reactants and their origins?

Accepted Answer

Pyruvate and Acetyl-CoA; Glycolysis and Citric Acid Cycle

Answer

Glucose-6-phosphate and Fructose-6-phosphate; Glycolysis

Answer

Ribose 5-phosphate and PEP; Pentose Phosphate Pathway and Glycolysis

Answer

Oxaloacetate and Alpha-ketoglutarate; Citric Acid Cycle