This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Biochemistry
[{'content': 'Not a substrate for gluconeogenesis \nSelect and explain. \nA. Glycerol, B. Leucine, C. Lactate, D. Propionate', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Substrates for gluconeognesis Lactate All amino acids except leucine and lysine Pyruvate Propionate Glycerol Intermediates of citric acid cycle Alanine is the most impoant gluconeogenic amino acid. REF: Lippincott book of biochemistry 6th ed.', 'role': 'assistant'}]