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प्रश्न
In the process of denaturation, there is NO change in the structure following protein.
विकल्प
primary
secondary
tertiary
quaternary
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उत्तर
primary
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संबंधित प्रश्न
Select the most correct choice.
A disulphide link gives rise to the following structure of a protein.
Give scientific reasons:
α-Amino acids have high melting points compared to the corresponding amines or carboxylic acids of comparable molecular mass.
Give scientific reasons:
On boiling egg albumin becomes opaque white.
Write the names and schematic representations of all the possible dipeptides formed from alanine, glycine and tyrosine.
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 ____________
Write the number of chiral carbon atoms present in fructose.
Complete the following reaction.
\[\ce{H2N - CH2 - COOH + H2N - CH2 - CH2 - COOH ->[-H2O] ?}\]
Define peptide bond.
Write types of proteins depending upon molecular shape.
Write industrial application of enzyme catalysis.
Define α-amino acids.
____________ is NOT a simple protein.
Nucleotide differs from a nucleoside as it has ______
Pyrimidines are ______.
Purine and pyrimidine bases are placed regularly along the DNA molecules at a distance of ______
Read the following statements and select the correct option.
- In quaternary structure, the peptide chains are much looped, twisted, and folded back on themselves due to formation of hydrogen bonds.
- When a protein has more than two polypeptide subunits their arrangement in space is called secondary structure.
Identify 'P' and 'Q' in the following table.
| Proteins | Role |
| immunoglobulin | P |
| Q | Blood clotting |
Choose the WRONG statement from the following.
Identify (i) and (ii) and select the correct option.
i. Protein portion of the enzyme is called the ____________.
ii. Non-protein constituent binding to the enzyme is called as the ____________.
The conjugate acid of \[\ce{CO^2-_3}\] is ____________.
Which of the following is NOT a protein?
Proteins are ______ of amino acids.
Which among the following amino acids has lowest molar mass?
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 amino acid having −CH3 as side chain is ____________.
Which of the following amino acid is an essential amino acid?
The basic amino acid is ____________.
Proteins attached with a prosthetic group are called ______ proteins.
A protein is a sequence of amino acids. The end of the polypeptide chain of -NH2 end and at -COOH end are respectively called ______.
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?
Which among the following amino acids has the lowest molecular mass?
Which among the following is a globular protein?
The central dogma of molecular genetics states that the genetic information flows from:
Among the following L-serine is:
The secondary structure of a protein refers to ____________.
Which of the following statement is not correct?
Which of the following amino acids is achiral?
Write the structure of all possible dipeptides which can be obtained from glycine and alanine.
Define enzymes.
Denaturation of proteins leads to loss of their biological activity by:
Which of the following amino acid is basic in nature?
The amino acid, which is basic in nature is ______.
Which among the following enzymes hydrolysis starch?
Tertiary structure of protein is stabilised by ______.
The tightly bound non-proteinaceous organic compound in enzyme is ______.
Write a short note on peptide bond.
Write a short note on peptide bond.
Write the Zwitter ion structure of alanine.
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 peptide bond.
Write a short note on peptide bond.
Write the Zwitter ion structure of alanine.
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.
Which from following is an essential amino acid?
The number of amino groups in the amino acids present in amides is ______.
