What is Protein & its properties , functions

Protein

Protein is complex organic nitrogenous compound composed of amino acids linked together by peptide bonds.

Sources :

Meats , Fish , Milk , Egg, Vegetables etc.

protien foods

Properties of protein :

·         Protein are colloidal in nature.

·         They are generally soluble in water , weak  salt solution, dilute acids and alkalies.

·         Protein undergo coagulation by heat and strong acid.

·         Each protein has got a particular isoelectric pH at which it can be precipitated.

·         Protein are denatured by many kinds of physical or chemical treatment such as shaking, change of reaction , addition of neutral salt etc.

Functional important of protein

·         Its acts as a growth material for the organism.

·         It repairs the wear and tear of the body.

·         To increase flesh, body weight etc. Cells mostly contain protein.

·         It forms buffer system of the body and helps in oxygen carriage.

·         It acts as a part of fuel of organism.

·         It provides energy to the body e.g- 4.1 kal/gm.

·         Maintains colloidal osmotic pressure etc.

·         It helps in the formation of enzymes, hormones antibody etc.