Advertisements
Advertisements
प्रश्न
Write a note on denaturation of proteins.
Advertisements
उत्तर
1. In general, protein has a unique three-dimensional structure formed by interactions such as disuiphide bond, hydrogen bond, hydrophobic and electrostatic interactions.
2. These interactions can be disturbed when the protein is exposed to a higher temperature in certain chemicals such urea, alternation of pH, ionic strength, etc. It leads to the loss of the three-dimensional structure.
3. The process of a protein losing its higher-order structure without losing the primary structure, It is called denaturation of protein. When a protein denatures, its biological function is also lost.
4. Since the primary structure is intact, this process can be reversed in certain proteins. This can happen spontaneously upon restoring the original conditions or with the help of special enzymes called chaperons.
5. Example: Coagulation of egg white by the action of heat.
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.
Draw a neat diagram for the following:
Secondary structure of protein
Write the structure of Zwitterion of alanine.
Write types of proteins depending upon molecular shape.
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 |
Proteins are polypeptides with linear chains of i ______ linked by ii ______ bonds.
The amino acid, which is basic in nature is ______.
Given below are two statements.
Statement I- Most of the blood proteins are acidic proteins.
Statement II - Derived proteins are not found in nature.
In the light of above statements, Select the correct option given below.
