This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolism of carbohydrate, Subject name: Biochemistry
[{'content': 'Gluconeogenesis enzyme stimulated in starvation \nSelect and explain. \nA. Carboxylase, B. Pyruvate dehydrogenase, C. Pyruvate kinase, D. Glucokinase', 'role': 'user'}, {'content': 'Answer: A \nExplanation: In starvation, there is excessive breakdown of fatty acids resulting in the formation of Acetyl CoA in the liver. They ensure the conversion of pyruvate to oxaloacetic acid. It acts as allosteric activator of the enzyme pyruvate carboxylase and inhibits pyruvate dehydrogenase of Glycolysis.', 'role': 'assistant'}]