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Difference between fibrous proteins and globular proteins

 

Fibrous proteins

Globular proteins

1.

They are long, elongated, thread-like and asymmetric in shape

They are spherical, oval or elliptical in shape

2.

The peptide chains are held together by strong intermolecular hydrogen bonds

The peptide chains are held together by relatively weak intramolecular hydrogen bonds

3.

They are insoluble in water but soluble in concentrated acids and alkalis

They are soluble in water

4.

Examples: Keratin, Fibroin, Collagen

Examples: Insulin, Casein, Egg albumin, myoglobin, antibodies

 

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