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प्रश्न
Describe the term D- and L- configuration used for amino acids with examples.
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उत्तर
Amino acid exists both in D' and L' forms. Most naturally occurring amino acids have L-configuration L-Amino acids are represented by writing the –NH2 group on left-hand side and D-amino acids are represented by writing the –NH2 group on right-hand side.
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संबंधित प्रश्न
The melting points and solubility in water of amino acids are generally higher than those of the corresponding halo acids. Explain.
Write the correct reaction for formation of the peptide bond between amino acids
Differentiable between the following:
Essential amino acids Non-essential amino acids
Which amino acids are chiral?
Among the following a chiral amino acid is:
Match the following:
| I | II |
| (i) Amino acids | (A) protein |
| (ii) Thymine | (B) Nucleic acid |
| (iii) Insulin | (C) DNA |
| (iv) phosphodiester linkage | (D) Zwitter ion |
Which of the following is the best matched options?
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
Amino acids can be classified as α–, β–, γ–, δ– and so on depending upon the relative position of amino group with respect to carboxyl group. Which type of amino acids form polypetide chain in proteins?
The amino acid are the end product of the digestion of:-
X – Amino acid behave as crystalline ionic solid and have high melting-point due to the present of:-
Which of the following X – amino acids is not optically active?
Which of the following is a basic amino acid?
Why tryptophan is an essential amino acid?
