<prompt> Mucopolysaccharideproteoglycans present in eye are?Keratan sulfate dermatan sulfateDermaton sulfate heparan sulfateDermaton sulfate chondroitin sulfateKeratan sulfate and chondroitin sulfate  <response>: Ans. is d i.e., Keratan sulfate and chondroitin sulfateKeratan sulfate and chondroitin sulfate are present in cornea. Hyaluronic acid is present in vitreous humor.Keratan Sulphate is the only proteoglycan that does not contain acid sugar in disaccharide repeat unit. Instead it contains D-galactose simple sugar in place of acid sugar. 