what Type of collagen is found in bone ?: (A) Type 1, (B) Type 2, (C) Type 3, (D) Type 4
Answer is A. Type 1 collagen fibres,derived from tropocollagen molecules produced by osteoblasts,make up over 80 percent of unmineralized matrix. They form a network which emboides a mucopolysaccharide(proteoglycans)ground substance and also acts as a scaffold on which the mineral component-crystalline hydroxyapatite is deposited. ref: apley&;s textbook,9th edition page no.118