Proteoglycan Molecules in the Matrix of Cartilage

Question

Proteoglycan molecules in the matrix of cartilage
A) replace collagen fibers in the matrix.
B) give cartilage its resilient nature.
C) fill the lacunae.
D) make the perichondrium very stretchable.
E) make cartilage hard and compact.

Accepted Answer

Proteoglycan molecules in the matrix of cartilage contribute to its resilient nature by trapping water, which allows the tissue to rebound after being compressed. This is crucial for the function of cartilage in cushioning joints and providing flexibility and support.