This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Carbohydrates, Subject name: Biochemistry
Which form of carbohydrate is present in Proteoglycan? 
Select and explain. 
A. Monosaccharide, B. Disaccharide, C. Oligosaccharide, D. Polysaccharide
D: Polysaccharide
Answer: D: Polysaccharide 
Explanation: Ans. D. PolysaccharideProteoglycan contains carbohydrate more than protein. The form of carbohydrate is present in Glycoprotein is either aMonosaccharide or Oligosaccharide, but never Polysaccharide.