protein a major bio molecule for body

                                    PROTEIN IS ESSENTIAL💫

protein is essential  bio molecule present in body.Protein is considered as major body building molecule of life.Protein is made up of different amino acid that are attached to one another by peptide linkage in form of long chain. protein is most abundant kind of bio molecule,main structural and functional molecule in living organism. protein can be found in all cells of body especially muscle cells.Hair and Nails are mostly made up of protein.
Body use protein as a source to build up cells or tissues and repairs in case of any injury to cell.


FUNCTIONS OF PROTEIN MOLECULE:

1.  enzymes involved in the biochemical reactions in the body are protein in nature.
2. Many hormones are proteins in nature. 
3. With DNA molecules, where it controls the gene transcription and translation.
4. Proteins are involved in the transport processes. Example: Hemoglobin in RBC involved in the transport of oxygen. 
5. Immunological effects :Proteins have protective role in the body. example: Immunoglobulins are proteins that protect living organism against bacterial and viral infections.
6. Structural proteins like collagen and elastin provide structural strength and elasticity to organs.
7. Some proteins are used as nutrients example: casein of milk are used as nutrients.
8. Proteins are involved in the maintenance of osmotic pressure of plasma.
9. Some proteins like actin and myosin are involved in the contraction of skeletal muscles.

CLASSIFICATION OF PROTEINS:
protein can be classified on basis of solubility and physical properties:

• simple protein:simple protein on hydrolysis form amino aciod as end product.

they are still divided into:

• Albumins: These proteins are soluble in water coagulated by heat

1. Globulins: These proteins are insoluble in pure water, but soluble in dilute salt solutions. .

• conjugated protein:these are simple protein which attaches with non protein part example prosthetic group
• NUCLEOPROTEIN: simple protein in association with DNA and RNA.example: chromosome
• GLYCOPROTEIN: simple protein in association with glucose.example: mucin
• LIPOPROTEIN: simple protein in association with lipids.example: cholestrol
• PHOSPHOPROTEIN: simple protein in association with phosphorus.example: caesin

• derived protein:these are the protein formed from simple and conjugated protein by some external energy.

protein on basis of shape:

• fibrous protein: protein in which polypeptide chain coiled or extended to form linear fiber. fibrous protein mechanical strength to body.example: collagen, keratin etc
• globular protein: protein in which polypeptide chain coiled itself in 3-dimensional structural.example :enzymes

SOURCES OF PROTEIN:

• Egg: egg among most nutritious food well known,having good proportion of vitamin, minerals and certain antioxidant.
  

whole egg part are high in protein ,but egg white are almost pure protein.

• Almonds:
  
  almonds has high fibre content, vitamin E.
• Oats:
  
  oats are healthiest grain, they loaded with high fibre,vitamin B1 and several other nutrient.
• Milk
  
  : milk is highly nutritious and excellent source of high quality protein.milk include almost all nutrient needed by human body.
• Peas:
  
  high in fibre and low in fat. they are rich source of vegetable protein.