This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gluconeogenesis, Subject name: Biochemistry
Most impoant amino acid transpoed from muscle to liver for gluconeogenesis: 
Select and explain. 
A. Methionine, B. Tryptophan, C. Alanine, D. Arginine
C: Alanine
Answer: C: Alanine 
Explanation: Alanine most glucogenic amino acid. formed in fasting muscles from pyruvate. transpoed from muscles to the liver blood undergoes gluconeogenesis in liver. See treasure for Cahill Cycle (Glucose-Alanine Cycle) Reaction/Pathway taking place Product formed in Muscles During exercise Anaerobic glycolysis Lactate During fasting Transamination Alanine