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When the polypeptide chain runs parallel and are held together by hydrogen and disulphide bond then the proteins formed is:
- a)Spherical protein
- b)Fibrous protein
- c)Globular protein
- d)Linear protein
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
When the polypeptide chain runs parallel and are held together by hydr...
Fibrous Protein
When polypeptide chains run parallel & are held together by hydrogen and disulphide bonds, then ber, rod or wire-like structure is formed. They are shaped like fibers; hence called Fibrous protein These proteins are water-insoluble.
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When the polypeptide chain runs parallel and are held together by hydr...
Understanding Protein Structure
Proteins are essential macromolecules in biological systems, and their structure determines their function. When discussing protein types, it's crucial to understand the distinctions between fibrous and globular proteins.
Fibrous Proteins
- Structure: Fibrous proteins consist of polypeptide chains that are arranged in parallel or extended formations. This organization provides structural stability.
- Stability: The chains are held together primarily by hydrogen bonds and disulphide bonds, which contribute to their rigidity and strength.
- Examples: Common examples include keratin (found in hair and nails) and collagen (found in connective tissues), both of which serve structural roles in organisms.
Contrast with Other Protein Types
- Spherical Proteins: Also known as globular proteins, they are generally compact and spherical in shape. Their structure is stabilized by a variety of interactions, including hydrogen bonds, ionic interactions, and hydrophobic interactions, but they do not form parallel chains like fibrous proteins.
- Linear Proteins: While this term can refer to proteins without significant folding or secondary structure, it is not a standard classification and does not refer to a distinct type of protein.
Conclusion
The correct identification of fibrous proteins is based on their parallel chain arrangement and the presence of hydrogen and disulphide bonds. This structural characteristic is what distinguishes them from other protein types like globular proteins, which are more compact and spherical in shape. Thus, the answer to the question is indeed option 'B': Fibrous proteins.
Proteins are essential macromolecules in biological systems, and their structure determines their function. When discussing protein types, it's crucial to understand the distinctions between fibrous and globular proteins.
Fibrous Proteins
- Structure: Fibrous proteins consist of polypeptide chains that are arranged in parallel or extended formations. This organization provides structural stability.
- Stability: The chains are held together primarily by hydrogen bonds and disulphide bonds, which contribute to their rigidity and strength.
- Examples: Common examples include keratin (found in hair and nails) and collagen (found in connective tissues), both of which serve structural roles in organisms.
Contrast with Other Protein Types
- Spherical Proteins: Also known as globular proteins, they are generally compact and spherical in shape. Their structure is stabilized by a variety of interactions, including hydrogen bonds, ionic interactions, and hydrophobic interactions, but they do not form parallel chains like fibrous proteins.
- Linear Proteins: While this term can refer to proteins without significant folding or secondary structure, it is not a standard classification and does not refer to a distinct type of protein.
Conclusion
The correct identification of fibrous proteins is based on their parallel chain arrangement and the presence of hydrogen and disulphide bonds. This structural characteristic is what distinguishes them from other protein types like globular proteins, which are more compact and spherical in shape. Thus, the answer to the question is indeed option 'B': Fibrous proteins.
Community Answer
When the polypeptide chain runs parallel and are held together by hydr...
Yes like keratin
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When the polypeptide chain runs parallel and are held together by hydrogen and disulphide bond then the proteins formed is:a)Spherical proteinb)Fibrous proteinc)Globular proteind)Linear proteinCorrect answer is option 'B'. Can you explain this answer?
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