isoelectric point

Question

At isoelectric point, an amino acid exists as:

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The **Isoelectric Point ($pI$)** is the specific pH at which an amino acid molecule carries no net electrical charge.
- At this pH, the amino acid exists primarily as a **Zwitterion** (a dipolar ion having both a positive $NH_3^+$ and a negative $COO^-$ group).
- At $pH < pI$, it exists as a **cation**.
- At $pH > pI$, it exists as an **anion**.
- Amino acids show minimum solubility at their isoelectric point.

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isoelectric point

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More isoelectric point Practice Questions

Isoelectric point (pI) of amino acid is pH at which: