Question

Justify : ‘Amino acids and proteins can act as buffers’.

Answer 1

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Protein buffer systems depend upon proteins, as opposed to nonprotein molecules, to act as buffers and consume small amounts of acid or base. The protein hemoglobin makes an excellent buffer. It can bind to small amounts of acid in the blood, helping to remove that acid before it changes the blood's pH.

And An amino acid can act as a buffer because it can react with added acids and bases to keep the pH nearly constant. The general formula of an amino acid is H2NCHRCOOH , where R is a side chain characteristic of each amino acid. ( NH2 ), it can act as both an acid and a base.

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Answer 2

An amino acid can act as a buffer because it can react with added acids and bases to keep the pH nearly constant.

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