This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
[{'content': 'All of the following are ketone bodies EXCEPT \nSelect and explain. \nA. Alpha ketoglutarate, B. Acetone, C. Acetoacetate, D. Beta-hydroxy butyrate', 'role': 'user'}, {'content': "Answer: A \nExplanation: Primary ketone body-Acetoacetate.\nSecondary ketone bodies- Acetone, Beta-hydroxybutyrate.\nNeutral Ketone body-Acetone.\nKetone body excreted through lungs-Acetone.\nSite of synthesis of ketone bodies-Liver mitochondria.\nOrgans which do not utilize ketone bodies-Liver, RBCs.\nRate limiting step of ketone body synthesis-HMG CoA Synthase.\nKetone bodies that do not answer Gerhardt's test- Betahydroxybutyrate and Acetone.\nKetone body that does not answer neither Rothera test nor Gerhardt's test-Betahydroxybutyrate.", 'role': 'assistant'}]