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What type of bonding helps in stabilisin...

What type of bonding helps in stabilising the a-helix structure of proteins?

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The `alpha-`helix structure of proteins is stabilzed by intramolecular `H-`bonding between `C = O` of one amino acid residue and the `N - H` of the fourth amino acid residue in the chain. This causes the polypeptide chain to coil. This causes the polypeptide chain to coil up into a spiral structure called right handed `alpha-` helix structure.
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NCERT ENGLISH-BIOMOLECULES-Exercise
  1. What is glycogen? How is it different from starch?

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  2. What are the hydrolysis products of (i) sucrose and (ii) lactose?

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  3. What is the basic structural difference between starch and cellulose?

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  4. What happenes when D-glucose is treated with the following reagents? ...

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  5. Enumerate the reactions of D-Glucose which cannot be explained by its ...

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  6. What are the essential and non-essential amino acids?Give two examples...

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  7. Define the following as related to proteins: (i) Peptide linkage (...

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  8. What are the common types of secondary structures for proteins?

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  9. What type of bonding helps in stabilising the a-helix structure of pro...

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  10. Differentiate between globular and fibrous proteins.

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  11. How do you explain the amphoteric behaviour of amino acids ?

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  12. What are enzymes ?

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  13. What is the effect of denaturation on the structure of proteins?

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  14. How are vitamines classified? Name the vitamin responsible for the coa...

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  15. Why are vitamin A and vitamin C essential for us? Give their important...

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  16. What are nucleic acids ? Mention their two important functions.

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  17. What is the difference between a nucleoside and a nucleotide ?

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  18. The two strands of DNA are not identical, but are complementary'. Expl...

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  19. Write the main structural difference between DNA and RNA. Of the four ...

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  20. What are the different types of RNA found in the cell?

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