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The bond maintaining the linear sequence of amino acids in a polypeptide chain is:
- Peptide bond
- Disulphide bridges
- Hydrogen bond
- Ionic interaction
- N/A
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Answer: A Explanation: -
Two polypeptide chains of insulin protein are held together by which bonds?
- Disulphide
- Hydrophobic
- Hydrogen
- Ionic
- N/A
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Answer: A Explanation: -
Secondary structure of protein is formed by coiling and folding of polypeptide chain by which of the following bond?
- Disulphide
- Hydrophobic
- Hydrogen
- Ionic
- N/A
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Answer: B Explanation: -
Which of the following bonds are present in the tertiary structure of proteins?
- Disulphide& ionic bonds
- Hydrophobic
- Hydrogen & peptide bonds
- both A &C
- N/A
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Answer: D Explanation: -
Most important structure in globular proteins is:
- Primary structure
- Secondary structure
- Tertiary structure
- Quaternary structure
- N/A
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Answer: C Explanation: -
Pick out the fibrous protein from the following:
- Insulin
- Hemoglobin
- Actin
- Myosin
- N/A
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Answer: D Explanation: -
Change in pH of the medium can disrupt the function of which of the protein readily?
- Pepsin
- Collagen
- Keratin
- Silk
- N/A
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Answer: A Explanation: -
In sickle cell hemoglobin one amino acid is changed in:
- One alpha chain
- Both alpha chains
- One beta chain
- Both beta chains
- N/A
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Answer: D Explanation: -
In sickle cell hemoglobin, the change of single nucleotide results in change of amino acid in beta chain at:
- 1st position
- 2nd position
- 5th position
- 6th position
- N/A
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Answer: D Explanation: -
The shape which the protein molecule assumes when its polypeptide chain folds into its final compact form is called protein’s:
- Structure
- Primary structure
- Secondary structure
- Tertiary structure
- N/A
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Answer: A Explanation: