The Organic Portion of Bone Matrix is Made Of

Question

The organic portion of bone matrix is made of
A) Collagen and hydroxyapatite
B) Proteoglycans and hydroxyapatite
C) Calcium phosphate and collagen
D) Collagen and proteoglycans

Accepted Answer

The organic portion of bone matrix is primarily composed of collagen and proteoglycans, which provide tensile strength and flexibility.