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: Physiology
[{'content': 'Increased ratio of insulin to glucagon causes: \nSelect and explain. \nA. Decreased levels of cyclic AMP, B. Decreased levels of lipoprotein lipase, C. Decreased amino acid synthesis, D. Enhanced lipolysis in adipose tissue', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Glucagon\xa0acts via\xa0increase\xa0in intracellular cAMP. So, in high insulin glucagon ratio, cAMP level in the cell decreases. Insulin causes activation of lipoprotein lipase\xa0and\xa0inhibition\xa0of\xa0hormone\xad-sensitive lipase.\xa0Because\xa0of\xa0this, there\xa0is\xa0increased fatty acids synthesis in adipose tissue. Insulin also increases amino acid uptake and protein synthesis in muscles. Normal insulin\xad glucagon molar ratio on a balanced diet is approximately 2.3.', 'role': 'assistant'}]