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How do amino acids behave in both acidic and basic conditions?

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This page looks at what happens to amino acids as you change the pH by adding either acids or alkalis to their solutions. For simplicity ... An amino acid has both a basic amine group and an acidic carboxylic acid group. ... Suppose you start with the ion we've just produced under acidic conditions and slowly add alkali to it. read more

Amino acids behave as acids in basic conditions and as bases in acidic conditions. All amino acids have an amino group (-NH2), which is alkaline, and a carboxylic acid group (-COOH), which is acidic. In basic conditions, the -COOH group loses a H+ to become -COO^-. By donating a H+, the amino acid is acting as an acid. read more

For simplicity, the page only looks at amino acids which contain a single -NH 2 group and a single -COOH group. Amino acids as zwitterions. Zwitterions in simple amino acid solutions. An amino acid has both a basic amine group and an acidic carboxylic acid group. read more

The R group (everything else besides the amino group, α carbon and carboxyl group) present in an α amino acid. The nature of this side chain distinguishes α amino acids from one another. They differ in size, shape, charge, acidity, functional groups present in proteins, hydrogen bonding ability and chemical reactivity. read more

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