MINISTRY OF DEFENCE

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  MINISTRY OF DEFENCE. Establishment Of National University In Islamabad Total position. 29 Domicile , All over Pakistan    Qualification  intermediate to bachelor positions . Project Engineer(Civil) account Officer  supervisor assistant office boy     How to apply.   Apply online through the link https://www.fgei-cg.gov.pk/nup-rec.php   Last date to apply  02 April 2023. No TA/DA Fo Interview 
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Protein Introduction,History,characteristics

Protein Introduction,History,characteristics



Proteins

The  term protein is derived from the greek word proteious meaning ( primary or holding tge first place)

Proteins  are the most abundant organic molecules of the living system. They occur in every part of the cell and constitute about 50%of the dry weight. proteins forms the fundamental basis of structure and function of life.


All proteins are polymer of amino acids . Amino acids are most organic compound consists of two functional groups one amino group and other carboxylic acids while amino group is basic in nature and carboxylic group is acidic in nature

History

Its name suggested by john jaccob berzellius

Characteristics of protein 

1) proteins are the higher molecular weight

For example

2) lactalbumin  of milk is 17000 molecular weight

3)GLiadin from wheat 27000 

4) Serum globulin 170000

5)Edastin from hemp seed 300000

6) tobacco mosaic virus 60000000

7) Proteins donot melt when when heated but decompose.

8)Different  kinds of proteins are soluble in different solvents



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