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Question
What is the difference between fibrous protein and globular protein ?
Solution
| Fibrous Proteins | Globular Proteins | |
| 1. | They are fibre-like structures formed by polypeptide chains. Such proteins are held together by strong hydrogen and disulphide bonds. | The polypeptide chains in these proteins are folded around themselves, giving these proteins a spherical structure. |
| 2. | They are usually insoluble in water. | They are usually soluble in water. |
| 3. | They are structural proteins. For example, keratin is present in nails and hair, collagen is present in tendons and myosin is present in muscles. | They are functional proteins. For example, most enzymes and some hormones like insulin. |
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