Advertisements
Advertisements
प्रश्न
Amino acids behave like salts rather than simple amines or carboxylic acids. Explain.
Advertisements
उत्तर
In aqueous solution, the –COOH group of an amino acid loses a proton and –NH2 group accepts a proton to form zwitter ion (salt).
\[\begin{array}{cc}
\phantom{........}\ce{O}\phantom{........................}\ce{O}\phantom{.}\\
\phantom{........}||\phantom{........................}||\phantom{.}\\
\ce{H2N - CH - C - OH ⇌ H3\overset{+}{N} - CH - C - O-}\\
\phantom{........}|\phantom{.........................}|\phantom{.............}\\
\phantom{}\ce{\underset{Amino acid}{R}}\phantom{..............}\ce{\underset{Zwitter ion (inner salt)}{R}}\phantom{}
\end{array}\]
APPEARS IN
संबंधित प्रश्न
Define the following term:
Essential amino acids
What are amino acids?
Write the correct reaction for formation of the peptide bond between amino acids
Differentiable between the following:
Essential amino acids Non-essential amino acids
The number of tripeptides formed by 3 different amino acids.
Which amino acids are chiral?
Among the following a chiral amino acid is:
Which of the following acids is a vitamin?
Each polypeptide in a protein has amino acids linked with each other in a specific sequence. This sequence of amino acids is said to be ______.
Lysine, \[\begin{array}{cc}
\ce{H2N - (CH2)4 - CH - COOH}\\
\phantom{.....}|\\
\phantom{........}\ce{NH2}
\end{array}\] is:
(i) α-Amino acid
(ii) Basic amino acid
(iii) Amino acid synthesised in body
(iv) β-Amino acid
Describe the term D- and L- configuration used for amino acids with examples.
The amino acid are the end product of the digestion of:-
Which of the following X – amino acids is not optically active?
Which of the following is a basic amino acid?
Proteins are condensation polymers of:
Define Zwitter ion
