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': 'Uronic acid level in urine is elevated in- \nSelect and explain. \nA. Tyrosinosis, B. Maple syrup urine disease, C. Nieman picks disease, D. mucopolysaccharidosis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Uronic acid (glucuronic acid) is one of the essential components of mucopolysaccharide (glycosaminoglycans). So, it is increased in mucopolysaccharidosis.\nIn mucopolysaccharidosis, glucuronic acid and iduronic acid are excreted in urine.', 'role': 'assistant'}]