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': 'Glycoproteins are ? \nSelect and explain. \nA. Proteins to which glucose is attached, B. Carbohydrate to which protein is attached, C. Protein to which lipid and glucose is attached, D. None of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Glycoprotein are conjugated proteins. They consists of protein to which sho branched, oligosaccharides are covalently attached.Proteoglycans are carbohydrates to which small amount of protein is attached. Proteoglycans consists of 95% of carbohydrate and 5. 5% of protein. To know the structure of proteoglycans, one should know the structure of glycosaminoglycans.', 'role': 'assistant'}]