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प्रश्न
Explain denaturation of proteins.
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उत्तर
- Denaturation is the process by which the molecular shape of protein changes without breaking the amide/peptide bonds that form the primary structure.
- High temperature, acid, base and even agitation can disrupt the noncovalent interactions responsible for a specific shape of the protein. This is referred to as the denaturation of proteins.
- Denaturation results in disturbing the secondary, tertiary, or quaternary structure of the protein. This causes a change in the properties of protein and the biological activity is often lost.
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संबंधित प्रश्न
Select the most correct choice.
A disulphide link gives rise to the following structure of a protein.
Draw a neat diagram for the following:
Secondary structure of protein
Write the structure of Zwitterion of alanine.
Complete the following reaction.
\[\ce{H2N - CH2 - COOH + H2N - CH2 - CH2 - COOH ->[-H2O] ?}\]
Define peptide bond.
From the following identify the INCORRECT match with respect to the different structures of proteins.
Identify 'P' and 'Q' in the following table.
| Proteins | Role |
| immunoglobulin | P |
| Q | Blood clotting |
Choose the WRONG statement from the following.
The optically inactive amino acid is ____________.
Which of the following contains keratin?
The amino acid having −CH3 as side chain is ____________.
Which of the following amino acid is an essential amino acid?
The number of proteins in an average human cell is over ______.
Proteins attached with a prosthetic group are called ______ proteins.
Identify basic amino acid from following.
Which of the following molecules from a zwitter ion?
Which among the following amino acids has the lowest molecular mass?
Which among the following is a globular protein?
Which among the following is basic amino acid?
In a protein, various amino acids linked together by ____________.
Among the following the achiral amino acid is:
Which of the following amino acids is achiral?
Write a note on denaturation of proteins.
Write the structure of all possible dipeptides which can be obtained from glycine and alanine.
Which of the following amino acid is basic in nature?
Which among the following enzymes hydrolysis starch?
Write a short note on peptide bond.
