How proteins are classified based on their molecular shape ?

Explanation

Proteins are classified into two types , based on their molecular shape :
(a) Fibrous protein : It is fibre like structure formed when the polypeptide chains run parallel and are held together by hydrogen and disulphide bonds. These protein are insoluble in water.
(b) Globular protein : It is formed when chains of polypeptides coil around to give a spherical shape. They are soluble in water. Example : Insulin, Albumin.