At ph ___, the pentapeptide ala-glu-his-val-cys would contain two positively charged groups and one negatively charged group
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At pH 3.5, the given pentapeptide ala-glu-his-val-cys will contain two positively charged groups and one negatively charged group.
- Ammino acids or peptides are molecules which have both carboxylic as well as ammino groups.
- Owing to the relative concentration of the H⁺ and OH⁻ ions (i.e. the pH of the medium), they tend to convert into zwitter ions.
- This depends upon the pKₐ and pKb of the acid and the base respectively.
- Thus, two contain two positively charged groups, i.e. NH₃⁺, the pH of the solution must be in acidic region.
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