The isoelectric point is a
- ASpecific temperature
- BSuitable concentration of amino acid
- CHydrogen ion concentration at which an amino acid does not migrate under an electric field
- DMelting point of an amino acid under the influence of an electric field
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Similar Questions
The structure of a peptide is given below. If the absolute values of the net charge of the peptide at $pH = 2$,$pH = 6$,and $pH = 11$ are $|z_1|$,$|z_2|$,and $|z_3|$,respectively,then what is $|z_1| + |z_2| + |z_3|$?
DifficultIIT 2020
View SolutionThe number of chiral carbon(s) present in the peptide, $Ile-Arg-Pro$, is......
The general structure of $\alpha$-amino acid can be represented as shown below. Which amino acid is not correctly matched with the $R$ group given?
Which of the following statements about proteins is not true?
Easy
View SolutionThe substituents $R_1$ and $R_2$ for nine peptides are listed in the table given below. How many of these peptides are positively charged at $pH = 7.0$?
Peptide $R_1$ $R_2$ $I$ $H$ $H$ $II$ $H$ $CH_3$ $III$ $CH_2COOH$ $H$ $IV$ $CH_2CONH_2$ $(CH_2)_4NH_2$ $V$ $CH_2CONH_2$ $CH_2CONH_2$ $VI$ $(CH_2)_4NH_2$ $(CH_2)_4NH_2$ $VII$ $CH_2COOH$ $CH_2CONH_2$ $VIII$ $CH_2OH$ $(CH_2)_4NH_2$ $IX$ $(CH_2)_4NH_2$ $CH_3$
| Peptide | $R_1$ | $R_2$ |
|---|---|---|
| $I$ | $H$ | $H$ |
| $II$ | $H$ | $CH_3$ |
| $III$ | $CH_2COOH$ | $H$ |
| $IV$ | $CH_2CONH_2$ | $(CH_2)_4NH_2$ |
| $V$ | $CH_2CONH_2$ | $CH_2CONH_2$ |
| $VI$ | $(CH_2)_4NH_2$ | $(CH_2)_4NH_2$ |
| $VII$ | $CH_2COOH$ | $CH_2CONH_2$ |
| $VIII$ | $CH_2OH$ | $(CH_2)_4NH_2$ |
| $IX$ | $(CH_2)_4NH_2$ | $CH_3$ |
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