Problem- which amino acid has a side chain that has a pka


Problem- Which amino acid has a side chain that has a pKa that can act as a buffer in a physiological pH range (~pH = 7.4)? The pH range over which a buffer is effective is called the buffering range, usually defined as pKa + 1 to pKa - 1.

a. Arginine

b. Histidine

c. Aspartate

d. Lysine

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Chemistry: Problem- which amino acid has a side chain that has a pka
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