Advertisements
Advertisements
प्रश्न
Give scientific reasons:
α-Amino acids have high melting points compared to the corresponding amines or carboxylic acids of comparable molecular mass.
Why α-amino acids have high melting points compared to the corresponding amines or carboxylic acids of comparable molecular mass?
उत्तर
- This is due to the peculiar structure called zwitter ion structure of α -amino acids.
- α-Amino acid molecule contains both acidic carboxyl (–COOH) group as well as basic amino (–NH2) group.
- Proton transfer from the acidic group to the basic group of amino acid forms a salt, which is a dipolar ion called zwitter ion.
Thus, α-amino acids have high melting points compared to the corresponding amines or carboxylic acids of comparable molecular mass.
संबंधित प्रश्न
Draw a neat diagram for the following:
Secondary structure of protein
Draw a neat diagram for the following:
Enzyme catalysis
The chemical nature of peptide bond in proteins is ____________
Write the number of chiral carbon atoms present in fructose.
Define peptide bond.
Define enzyme.
Write industrial application of enzyme catalysis.
The optically inactive amino acid is ____________.
The conjugate acid of \[\ce{CO^2-_3}\] is ____________.
Proteins are ______ of amino acids.
Identify the enzyme X in the following reaction.
\[\ce{H2O2(aq) ->[x] H2O(l) + \frac{1}{2} O2(g)}\]
β-pleated sheets of polypeptide chains are present in ______.
The side chain R in cysteine is ____________.
Which of the following is the simplest amino acid?
The basic amino acid is ____________.
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?
Give the differences between the primary and secondary structure of proteins.
Write the Zwitter ion structure of alanine.
Tertiary structure of protein is stabilised by ______.
Write the Zwitter ion structure of alanine.
Write the Zwitter ion structure of alanine.
Write a short note on a peptide bond.
Short Answer Question.
Write the Zwitter ion structure of alanine.
Write a short note on peptide bond.
