Advertisements
Advertisements
प्रश्न
Explain denaturation of proteins.
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
Give scientific reasons:
α-Amino acids have high melting points compared to the corresponding amines or carboxylic acids of comparable molecular mass.
Write the names and schematic representations of all the possible dipeptides formed from alanine, glycine and tyrosine.
Draw a neat diagram for the following:
Zwitter ion
Draw a neat diagram for the following:
Secondary structure of protein
Draw a neat diagram for the following:
Enzyme catalysis
The optically inactive α-amino acid among the following is _____________
The chemical nature of peptide bond in proteins is ____________
In the process of denaturation, there is NO change in the structure following protein.
Write the structure of Zwitterion of alanine.
Write the number of chiral carbon atoms present in fructose.
Define peptide bond.
Write types of proteins depending upon molecular shape.
Write industrial application of enzyme catalysis.
Define α-amino acids.
Explain the primary structure of proteins.
____________ is NOT a simple protein.
Histones are involved in packaging of DNA into structural units called ______.
Purine and pyrimidine bases are placed regularly along the DNA molecules at a distance of ______
Identify 'P' and 'Q' in the following table.
| Proteins | Role |
| immunoglobulin | P |
| Q | Blood clotting |
Choose the WRONG statement from the following.
Proteins are polypeptides with linear chains of i ______ linked by ii ______ bonds.
Identify the enzyme X in the following reaction.
\[\ce{H2O2(aq) ->[x] H2O(l) + \frac{1}{2} O2(g)}\]
Which among the following amino acids has lowest molar mass?
The bacteriostatic antibiotic from the following is ______.
β-pleated sheets of polypeptide chains are present in ______.
Which of the following amino acids has \[\ce{Me - S - CH2 - CH2 -}\] group in the side chain?
The side chain R in cysteine is ____________.
Which of the following is not a broad spectrum antibiotics?
The enzyme which converts maltose to glucose is ______.
The amino acid having −CH3 as side chain is ____________.
Which of the following amino acid is an essential amino acid?
The basic amino acid is ____________.
The most abundant cellular protein is ______.
Proteins attached with a prosthetic group are called ______ proteins.
If side-chain group-R for amino acid is -CH2OH, identify the amino acid from following?
Identify basic amino acid from following.
Which of the following amino acids has –CH2OH group in its side chain?
Identify the side chain –R present in amino acid lysine.
The central dogma of molecular genetics states that the genetic information flows from:
Among the following the achiral amino acid is:
Among the following L-serine is:
The secondary structure of a protein refers to ____________.
Write the Zwitter ion structure of alanine.
Write a note on denaturation of proteins.
Denaturation of proteins leads to loss of their biological activity by:
Which of the following amino acid is basic in nature?
Amino acids in a protein molecule, are linked by a peptide bond. Which of the following correctly shows the reaction of forming peptide bonds?
Tertiary structure of protein is stabilised by ______.
Peptide and hydrogen bonds are present in the primary structure of the protein which is due to ______.
Write a short note on peptide bond.
Write a short note on peptide bond.
Write the Zwitter ion structure of alanine.
Write the Zwitter ion structure of alanine.
Write a short note on a peptide bond.
Write a short note on peptide bond.
Write a short note on peptide bond.
Short Answer Question.
Write the Zwitter ion structure of alanine.
Write the Zwitter ion structure of alanine.
Write a short note on peptide bond.
Write a short note on peptide bond.
Write a short note on peptide bond.
Which from following is an essential amino acid?
The number of amino groups in the amino acids present in amides is ______.
