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': 'Ketone bodies are formed in: \nSelect and explain. \nA. Liver, B. Pancreas, C. Kidneys, D. Lungs', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ketone bodiesThey are three different water-soluble biochemicals that are produced as by-products when fatty acids are broken down for energy in the liver.Two of the three are used as a source of energy in the hea and brain while the third (acetone) is a waste product excreted from the body.In the brain, they are a vital source of energy during fasting.The three endogenous ketone bodies are- Acetone,Acetoacetic acid, and- Beta-hydroxybutyric acid', 'role': 'assistant'}]