Interpretation: The overall charge of a nonpolar amino acid at a pH below its pI.
Concept introduction:
➢ Amino acid: Any molecule contains both amino and acid group
Ex:
➢ The group can be simple as hydrogen atom (glycine) to more complicated groups such as alcohols,
➢ If is non polar
Then it is called non polar amino acid.
Ex:
The amino acid has two group,
➢ One acts as base and other acts as acid. So net charge or from of amino acid depends upon value as follows:
➢ Amino acid is any molecule that contains both amino and acid group. If then net charge on amino acid is zero called zwitterion from contains equal no of charge.
➢ If , then at this acts as acid and donates one proton to for
And it has total charge
➢ If , then
Acts as base and accept one proton form solution and convert to
So at such it has total charge
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