2. Introduction
Calcium is a silver white metallic element
of the alkaline earth metal.
Element - calcium
Symbol - Ca
Atomic mass - 40.078
Atomic number - 20
Boiling point - 1.4840
C
Melting point - 838.80C
Electronic configuration – 1s2 2s2 2p6 3s2
3p6 4s2
99% of calcium in the human body is in
bone and teeth the remaining 1% in blood.
3. Calcium is a major components of the structural
materials like bone and shell.
Formation of skeleton occurs through the
biomineralisation of calcium ion.
In such structural units calcium forms the
biominerals like insoluble carbonate
5. USES OF CALCIUM
Muscle contraction –Glycolysis – metabolic
degradation of glucose.
Gluconeogenesis – metabolic synthesis of
glucose.
Blood clotting – whenever our skin becomes
broken, calcium works together with vitamin
K and protein will helps to blood clotting.
Messenger system for hormonal activation
1 Parathyroid hormone
2 Calcitonin