The organic matrix of bone contains all of the following EXCEPT
A) Collagen type I
B) Osteocalcin
C) Matrix GLA protein
D) Vitronectin
E) Calbindin

Question

Quizplus · Accepted Answer

The organic matrix of bone primarily consists of type I collagen and various non-collagenous proteins such as osteocalcin, matrix GLA protein, and vitronectin, which play roles in bone mineralization and cell adhesion. Calbindin, however, is not a component of the bone matrix; it is a calcium-binding protein found in other tissues, such as the intestine and kidney, where it is involved in calcium absorption and transport.

The Organic Matrix of Bone Contains All of the Following