Home
Class 12
CHEMISTRY
(A) A protein chain tends to fold in a r...

(A) A protein chain tends to fold in a repeating geometric structure
(R) A protein chain with more number of hydrogen bonds is having less energy.

A

Both (A) and (R) are true and (R) is the correct explanation of (A)

B

Both (A) and (R) are true and (R) is not the correct explanation of (A)

C

(A) is true but (R) is false

D

Both (A) and (R) are false

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • BIOMOLECULES

    AAKASH SERIES|Exercise OBJECTIVE EXERCISE-3 (PREVIOUS NEET/AIPMT QUESTIONS)|30 Videos

  • ATOMIC STRUCTURE

    AAKASH SERIES|Exercise QUESTIONS FOR DESCRIPTIVE ANSWERS|43 Videos

  • CARBOHYDRATES

    AAKASH SERIES|Exercise Practice Sheet-5|30 Videos

Similar Questions

Explore conceptually related problems

(A) Tertiary structure of proteins represents overall folding i.e. further folding folding of 2^(@) structure. (R) 2^@ & 3^@ structures of protein stabilized by hydrogen bonds disulphide linkages, vander waals & electrostatic force of attraction.

Hyperconjugation describes the orbital interactions between the p-systems and the adjacent s-bond of the substituent group(s) in organic compounds. Hyperconjugation is also called as Baker and Nathen effect. The necessary and sufficient condition for the hyperconjugation are : i) Compound should have at least on sp2 hybrid carbon of either alkene, carbocation or alkyl free radical. ii) A-carbon with respect to sp2 hybrid carbon should have at least one hydrogen. Hyperconjugation are of three types: (i) s(C-H), p-conjugation. (iii) s(C-H), positive charge conjugation iv) s(C-H), odd electron conjugation The hyperconjugation may be represented as Number of resonating structures due to hyperconjugation = (n + 1) where n is the number of a-hydrogen. Greater is the number of such forms, more is the stability of the species under considersation. Stability of saturated alkyl carbocations can be explained by

Hyperconjugation describes the orbital interactions between the p-systems and the adjacent s-bond of the substituent group(s) in organic compounds. Hyperconjugation is also called as Baker and Nathen effect. The necessary and sufficient condition for the hyperconjugation are : i) Compound should have at least on sp2 hybrid carbon of either alkene, carbocation or alkyl free radical. ii) A-carbon with respect to sp2 hybrid carbon should have at least one hydrogen. Hyperconjugation are of three types: (i) s(C-H), p-conjugation. (iii) s(C-H), positive charge conjugation iv) s(C-H), odd electron conjugation The hyperconjugation may be represented as Number of resonating structures due to hyperconjugation = (n + 1) where n is the number of a-hydrogen. Greater is the number of such forms, more is the stability of the species under considersation. Which of the following carbocations will show highest number of Hyperconjugation forms?

Hyperconjugation describes the orbital interactions between the p-systems and the adjacent s-bond of the substituent group(s) in organic compounds. Hyperconjugation is also called as Baker and Nathen effect. The necessary and sufficient condition for the hyperconjugation are : i) Compound should have at least on sp2 hybrid carbon of either alkene, carbocation or alkyl free radical. ii) A-carbon with respect to sp2 hybrid carbon should have at least one hydrogen. Hyperconjugation are of three types: (i) s(C-H), p-conjugation. (iii) s(C-H), positive charge conjugation iv) s(C-H), odd electron conjugation The hyperconjugation may be represented as Number of resonating structures due to hyperconjugation = (n + 1) where n is the number of a-hydrogen. Greater is the number of such forms, more is the stability of the species under considersation. Which of the following carbocations will show highest number of Hyperconjugation forms?

Hyperconjugation describes the orbital interactions between the p-systems and the adjacent s-bond of the substituent group(s) in organic compounds. Hyperconjugation is also called as Baker and Nathen effect. The necessary and sufficient condition for the hyperconjugation are : i) Compound should have at least on sp2 hybrid carbon of either alkene, carbocation or alkyl free radical. ii) A-carbon with respect to sp2 hybrid carbon should have at least one hydrogen. Hyperconjugation are of three types: (i) s(C-H), p-conjugation. (iii) s(C-H), positive charge conjugation iv) s(C-H), odd electron conjugation The hyperconjugation may be represented as Number of resonating structures due to hyperconjugation = (n + 1) where n is the number of a-hydrogen. Greater is the number of such forms, more is the stability of the species under considersation. Hyperconjugation is possible in which of the following species ?

Number of peptide chains in oligo proteins.

Tertiary structure of a protein will lead the polypeptide chains to get the following shapes

AAKASH SERIES-BIOMOLECULES-OBJECTIVE EXERCISE-4 (ASSERTION (A) & REASON (R) TYPE QUESTIONS :)
  1. (A) All enzymes are proteins but all proteins are not enzymes. (R) K...

    Text Solution

    |

  2. (A) At isoelectric point an amino acid has highest solubility. (R) I...

    Text Solution

    |

  3. (A) A protein chain tends to fold in a repeating geometric structure ...

    Text Solution

    |

  4. (A) Entropy increases due to boiling of egg. (R) Breaking of tertiar...

    Text Solution

    |

  5. (A) Amino acid that can be synthesised by human body is called essenti...

    Text Solution

    |

  6. (A) At isoelectric point, the amino group does not migrate under the i...

    Text Solution

    |

  7. (A) Albumin, present in egg white converting into water insoluble fibr...

    Text Solution

    |

  8. (A) Rate of the hydrolysis of sucrose in the presence of acid is less ...

    Text Solution

    |

  9. (A)alpha -amino acids have high melting point and show unusually high ...

    Text Solution

    |

  10. (A) Proteins are step growth polymers of alpha- amino acids. (R) alph...

    Text Solution

    |

  11. (A) The proteins are synthesised by various RNA molecules in the cell....

    Text Solution

    |

  12. (A) Tertiary structure of proteins represents overall folding i.e. fur...

    Text Solution

    |

  13. (A) Valine and Leucine are essential amino acids. (R) Both valine an...

    Text Solution

    |

  14. (A) Leucine and isoleucine are structural isomers. (R) Isoleucine ha...

    Text Solution

    |

  15. (A) Xerophthalmia is treated with vitamin - B6 (R) Xerophthalmia is...

    Text Solution

    |

  16. (A) Insulin contains two peptide chains. (R) Insulin is an example o...

    Text Solution

    |

  17. (A) Vitamin 'C' is ascorbic acid. (R) All acids are vitamins

    Text Solution

    |

  18. (A) All hormone receptors are proteins, (R) All hormones are protein...

    Text Solution

    |

  19. (A) Water soluble vitamins like ascorbic acid must be supplied regular...

    Text Solution

    |

  20. (A) Vitamins are important in diet. (R) Deficiency of vitamins cause...

    Text Solution

    |