EVERYDAY SCIENCE

Detailed explanation-1: -Bones are made up of a framework of a protein called collagen, with a mineral called calcium phosphate that makes the framework hard and strong. Bones store calcium and release some into the bloodstream when it’s needed by other parts of the body.

Detailed explanation-2: -Bone composition and structure The major minerals found in bone are calcium and phosphorus in the form of an insoluble salt called hydroxyapatite [chemical formula: (Ca)10(PO4)6(OH)2]. Hydroxyapatite crystals lie adjacent and bound to the organic protein matrix.

Detailed explanation-3: -The skeleton serves two major functions at the same time: A structural function – Strong bones support and protect our body and allow us to move about on dry land. A reservoir function – Bones contain large amounts of calcium and phosphorus and thus provide a reserve supply for these minerals.

Detailed explanation-4: -Bone mineral is formed by small, imperfect hydroxyapatite crystals, which contain carbonate, magnesium, sodium, and potassium.

Detailed explanation-5: -In human adult body, about 90% of total phosphorus is stored in bone as hydroxyapatite (calcium-phosphate) crystals (2). Most of the remaining phosphorus is distributed in soft tissues, and phosphate is predominantly an intracellular ion.