Of the proteoglycans associated with the extracellular matrix in vertebrates,which of the following is associated with the lubrication of joints?
A)chondroitin sulfate
B)glucuronate
C)hyaluronate
D)keratan sulfate
E)mucoproteins

Question

Quizplus · Accepted Answer

Hyaluronate is the proteoglycan associated with the lubrication of joints as it forms a gel-like substance that helps reduce friction between joints. Chondroitin sulfate and keratan sulfate are primarily found in cartilage and play a role in its structural integrity. Glucuronate is a sugar molecule component of proteoglycans but does not have a specific association with joint lubrication. Mucoproteins are a type of glycoprotein and not specifically associated with joint lubrication.

Of the Proteoglycans Associated with the Extracellular Matrix in Vertebrates,which