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The K(alpha) and K(beta) values of a-ami...

The `K_(alpha) and K_(beta)` values of a-amino acids are very low. Explain.

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The `K_(a) and K_(b)` values of `alpha-` amino acids are very low because in `alpha-` amino acids, the acidic group is `-NH_(3)^(+)` and not usual `-COOH` group as in carboxylic acids and basic group is `-COO^(-)` instead of `NH_(2)` group in aliphatic amine. For example, the `K_(a) and K_(b)` values of glyccine are :
`K_(a)=1.6xx10^(-10)and K_(b)=2.4xx10^(-12)`
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