Concept explainers
(a)
To draw: The chemical structures of the two forms of alanine that predominant in aqueous solution.
Introduction: Alanine is an aliphatic amino acid used in the biosynthesis of polypeptides or proteins. Alanine consists of α-amino group and α -carboxyl group. Alanine is a non-polar amino acid due to presence of methyl group in its side chain.
(b)
To determine: The form of alanine that is present at the higher concentration level in the solutions of 1.0 pH.
Introduction: Alanine is an aliphatic amino acid used in the biosynthesis of polypeptides or proteins. Alanine consists of α-amino group and α -carboxyl group. Alanine is a non-polar amino acid due to presence of methyl group in its side chain.
(c)
To explain: The form of alanine that is present at the higher concentration level in the solutions of 6.2 pH.
Introduction: Alanine is an aliphatic amino acid used in the biosynthesis of polypeptides or proteins. Alanine consists of α-amino group and α -carboxyl group. Alanine is a non-polar amino acid due to presence of methyl group in its side chain.
(d)
To explain: The form of alanine that is present at the higher concentration level in the solutions of 8.02 pH.
Introduction: Alanine is an aliphatic amino acid used in the biosynthesis of polypeptides or proteins. Alanine consists of α-amino group and α -carboxyl group. Alanine is a non-polar amino acid due to presence of methyl group in its side chain.
(e)
To explain: The form of alanine that is present at the higher concentration level in the solutions of 11.9 pH.
Introduction: Alanine is an aliphatic amino acid used in the biosynthesis of polypeptides or proteins. Alanine consists of α-amino group and α -carboxyl group. Alanine is a non-polar amino acid due to presence of methyl group in its side chain.
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