Function of a mineral in our Body

 Function of a mineral :

Our body contains 29 differents elements. Minerals constitute about 8% of our body weight. These minerals are essential for a number of metabolic processes like blood coagulation , muscle contraction and enzyme action.


Function of a mineral, function of mineral , function of minerals and Vitamins


Classification of mineral elements :

(1) Principal elements (Macrominerals)

Calcium , magnesium , sodium , potassium, phosphorous , sulphur and chloride.

(2) Trace elements (Microminerals)

(a)  Essential Trace elements : iodine, iron, zinc, copper, fluorine.
(b)  Possibly essential Trace elements : nickel, vanadium, tin and silicon.
(c)  Non essential Trace elements : aluminium, cadmium, arsenic, lead and mercury.

Calcium :

Of all the minerals Calcium is present in large amounts in the body. It constitute 2% of the body weight. A normal adult has 1200 grams calcium in the body.

Function of Calcium :

1.  Calcium is necessary for the formation and growth of bones and teeth.
2.  Calcium is essential for the coagulation of blood.
3.  It is essential for transmission of nerve impulses.
4.  It is necessary for muscle contraction.
5.  It helps in maintaining acid balance and water balance.
6.  Calcium helps in the activation of a number of enzymes.

Sodium :

Sodium is the principal cation of extracellular fluid. It is present in the body as Nacl and NaHCO3 .

Function of Sodium :

1.  Sodium helps in maintaining acid base balance.
2.  It maintains the osmotic pressure of body fluid.
3.  It preserves the normal irritability of muscles.
4.  Sodium maintains the permeability of cells.

Potassium :

Potassium is the major intracellular cation. It is widely distributed in body tissues and body fluids. A high concentration is present in nerve tissue , cells , muscles and blood.

Function of potassium :

1.  It helps in maintaining acid - base balance.
2.  It influences muscular activity.
3.  It plays an important role in cardiac function.
4.  It is essential for conduction of nerve impulses.
5.  Enzymes like pyruvate kinase require potassium as a cofactor.

Iron :

Iron is the essential constitute of hemoglobin. It is also a component of respiratory enzymes like cytochrome oxidase and catalase .

Function of Iron :

1. Iron transports Oxygen to the tissues 
2.  It takes part in cellular oxidation - reduction reactions .
3.  It is a cofactor for enzymes like succinate dehydrogenase and aconitase .

Zinc :

A normal adult has 1.5 to 2.5 grams of zinc in the body . It has a wide distribution in the body . In plasma it is bound with albumin .

Function of Zinc :

1.  It is a constitute of enzymes like carbonic anhydrase and alcohol dehydrogenase .
2.  Zinc is required for insulin secretion.
3.  It stimulates the release of Vitamin A from liver .
4.  Zinc is necessary for wound healing .


Function of a mineral and classification of mineral.




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