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प्रश्न
In fibrous proteins, polypeptide chains are held together by:
(i) van der Waals forces
(ii) disulphide linkage
(iii) electrostatic forces of attraction
(iv) hydrogen bonds
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उत्तर
(ii) disulphide linkage
(iv) hydrogen bonds
Explanation:
In fibrous proteins, polypeptide chains are held together by disulphide linkage and hydrogen bonds.
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संबंधित प्रश्न
How are proteins classified on the basis of molecular shapes?
Discuss the optical activity of lactic acid.
Define the following as related to proteins:
Peptide linkage
What are the common types of secondary structure of proteins?
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Peptide linkage and Glycosidic linkage
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Which of the following statement is correct:
Which of the following are purine bases?
(i) Guanine
(ii) Adenine
(iii) Thymine
(iv) Uracil
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Reason: Maltose is composed of two glucose units in which C–1 of one glucose unit is linked to C–4 of another glucose unit.
Peptide linkage is:
Explain formation of peptide linkage in protein with an example.
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Reason (R): The secondary structure of proteins is stabilized by hydrogen bonding.
Select the most appropriate answer from the options given below:
The total number of negative charge in the tetrapeptide, Gly-Glu-Asp-Tyr at pH 12.5 will be ______. (Integer answers)
An α-helix is a structural feature of ______.
Write a classification of proteins with an example.
Match List I with List II:
| List I | List II |
| A. GLUT-4 | I. Hormone |
| B. Insulin | II. Enzyme |
| C. Trypsin | III. Intercellular ground substance |
| D. Collagen | IV. Enables glucose transport into cells |
Choose the correct answer from the options given below:
