An illustration shows the structure of amino acid as C single bond C with functional groups NH2 and R attached to the first C atom and double bond O and single bond OH attached to the second C atom.
Which option explains why this amino acid can act as both an acid and a base?
(1 point)
Responses
It contains both an amino functional group and a carboxyl functional group. In a solution, the amino group can decrease acidity, while the carboxyl group can increase acidity.
It contains both an amino functional group and a carboxyl functional group. In a solution, the amino group can decrease acidity, while the carboxyl group can increase acidity.
It contains both an amino functional group and a methyl functional group. In a solution, the amino group can decrease acidity, while the methyl group can increase acidity.
It contains both an amino functional group and a methyl functional group. In a solution, the amino group can decrease acidity, while the methyl group can increase acidity.
It contains both an amino functional group and a carboxyl functional group. In a solution, the amino group can increase acidity, while the carboxyl group can decrease acidity.
It contains both an amino functional group and a carboxyl functional group. In a solution, the amino group can increase acidity, while the carboxyl group can decrease acidity.
It contains both an amino functional group and a methyl functional group. In a solution, the amino group can increase acidity, while the methyl group can decrease acidity.
1 answer
The correct option is:
It contains both an amino functional group and a carboxyl functional group. In a solution, the amino group can decrease acidity, while the carboxyl group can increase acidity.
This is because the amino group (–NH2) can accept a proton (H+) and act as a base, while the carboxyl group (–COOH) can donate a proton and act as an acid. Therefore, the presence of both functional groups allows the amino acid to function as both an acid and a base.
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