Question

Bones are mainly made up of
(a) calcium and phosphorous
(b) calcium and sulphur
(c) calcium and magnesium
(d) calcium and iron

Answer 1

The bones are made up
(A) Calcium and Phosphorus.

Answer 2

Answer is option "a"

Explanation:

• Bone tissue is made of bone cells (osteocytes) surrounded by matrix, and on its surface, bone-producing cells called osteoblasts; bone-dissolving cells called osteoclasts; and bone stem cells called osteogenic (or osteoprogenitor) cells.
• The organic constituents of bone include the collagen fibre matrix including glycoproteins and proteoglycans. The inorganic composition of bone is primarily formed from salts of calcium and phosphate, the major salt being hydroxyapatite.Bone is made mostly of collagen, a protein that is woven into a flexible framework.
• Bone also contains calcium phosphate and calcium carbonate, minerals that include quality and solidify the system.
• Hence, the right answer is option a "calcium and phosphorous".