This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Carbohydrates, Subject name: Biochemistry
Glucose can be synthesised from all except: 
Select and explain. 
A. Amino acids, B. Glycerol, C. Acetoacetate, D. Lactic acid
C: Acetoacetate
Answer: C: Acetoacetate 
Explanation: Ans. C. Acetoacetate(Ref: Harper 31/e page 172)Substrates for GluconeogenesisGlucogenic amino acidsLactateGlycerolAcetyl-CoA, Acetoacetate are not substrates for gluconeogenesis