Home
Class 12
CHEMISTRY
Why is alpha-helix name as 3.6(13) helix...

Why is `alpha`-helix name as `3.6_(13)` helix ?

Text Solution

Verified by Experts

Since each turn of `alpha`-helix has approximately 3.6 amino acids and the hydrogen bonding leads to the formation of a 13 membered ring, the `alpha`-helix is termed as `3.6_(13)` helix
Promotional Banner

Topper's Solved these Questions

  • BIOMOLECULES

    CHHAYA PUBLICATION|Exercise Short answer type [SA]|31 Videos

  • BIOMOLECULES

    CHHAYA PUBLICATION|Exercise Solved WBCHSE Scanner|16 Videos

  • BIOMOLECULES

    CHHAYA PUBLICATION|Exercise Practic Set 29|1 Videos

  • CHEMICAL KINETICS

    CHHAYA PUBLICATION|Exercise EXERCISE (NUMERICAL PROBLEMS)|37 Videos

Similar Questions

Explore conceptually related problems

Proteins are found to have two different types of secondary structure viz, alpha- helix and beta- pleated sheet structure, alpha- helix structure of protein is stabilised by-

Which enzyme unwinds the DNA helix ?

Pitch of alpha -helix of a polypeptide is

What type of bonding helps in stabillising the alpha -helix structure of proteins?

Explain the terms primary and secondary structure of proteins. What is the difference between alpha -helix and beta -pleated sheet structure of proteins?

Main chain of glycogen and starch is helically coiled with each turn of helix having

Why pernicious anaemia causes? What is peptide bond? Name an optically inactive alpha -amino acid.

If sin ( alpha + beta ) =(4)/(5) and sin (alpha - beta ) =(5)/(13), find the value of tan 2 alpha

The angle between a pair of tangents drawn from a point P to the circle x^2+y^2+4x-6y+9sin^2alpha+13cos^2alpha=0" is "2alpha . The equation of the locus of the point P is

The angle between a pair of tangents drawn from a point P to the circle x^2+y^2+4x-6y+9sin^2alpha+13cos^2alpha=0 is 2alpha The equation of the locus of the point P is

CHHAYA PUBLICATION-BIOMOLECULES-Very short answer type [VSA]
  1. How many 5-membered rings and 6-membered rings are found in steriods?

    Text Solution

    |

  2. Which steroid is abundant in living bodies?

    Text Solution

    |

  3. Name two components of essential oil.

    Text Solution

    |

  4. Name the two classes of nitrogenous bases in nucleic acid.

    Text Solution

    |

  5. Name the two pentose sugars present in DNA and RNA

    Text Solution

    |

  6. Explain the formation of sugar-phosphate backbone in DNA

    Text Solution

    |

  7. Define invert sugar

    Text Solution

    |

  8. Given an example of amino acid containing 2^(@) amine.

    Text Solution

    |

  9. Why do enzymes accelerate biochemical reactions?

    Text Solution

    |

  10. How many isoprene units are present in beta -carotene ? What kind of t...

    Text Solution

    |

  11. What is the structral feature characterising reducing sugars?

    Text Solution

    |

  12. Mention the names of two carbohydrates which act as biofuels.

    Text Solution

    |

  13. Name the enzyme present in the saliva of human beings and mention its ...

    Text Solution

    |

  14. Why is alpha-helix name as 3.6(13) helix ?

    Text Solution

    |

  15. Mention the animo acids which exhibit aromatic properties.

    Text Solution

    |

  16. Indicate the total number of basic groups in the following form of lys...

    Text Solution

    |

  17. Name two alpha- animo acids which form a dipeptide, whose methyl ester...

    Text Solution

    |

  18. Define native state with reference to protein.

    Text Solution

    |

  19. Name the enzyme that breaks large protein into small peptides.

    Text Solution

    |

  20. What happens when L-glucose is treated with tollens' reagent?

    Text Solution

    |