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Explain the classification of proteins based on their structure. |
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Answer» Solution :Proteins are CLASSIFIED based on their structure (overall shape) into two major types. They are fibrous protein and GLOBULAR proteins. (i) Fibrous. proteins : These proteins are LINEAR molecules. These are generally insoluble in water and are held together by disulphide bridges and weak by INTERMOLECULAR hydrogen BONDS. The proteins often used as structural proteins.Example: Keratin, Collagen etc ... (ii) Globular proteins : These proteins have an overall spherical shape. The polypeptide chain is folded into a spherical shape. These proteins are usually soluble in water and have many functions including catalysis. |
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