Which of the following matrix molecules in cartilage tends to trap large quantities of water?
A)proteoglycan
B)hyaluronic acid
C)elastin
D)collagen
E)chondrocytes

Question

Quizplus · Accepted Answer

Proteoglycan is known to trap large quantities of water in the extracellular matrix of cartilage. Hyaluronic acid also has hydrating properties but typically isn't considered a matrix molecule in cartilage. Elastin and collagen provide structural support to cartilage but do not have the same water-retaining capacity as proteoglycan. Chondrocytes are the cells that produce and maintain the matrix but are not themselves molecules.

Which of the Following Matrix Molecules in Cartilage Tends to Trap