Please answer correctly. Choose the correct letter I'll rate you helpful. Two of the common amino acids are analyzed. Amino acid C and amino acid H both have an isoelectric point in the range of 5.0-6.5. Which must be a characteristic of both amino acid C and amino acid H?) a. Each molecule must contain two stereogenic centers. b. Each molecule must have an R-group that is uncharged at pH=7.0. c. Each molecule must have an R-group that absorbs light at 280 nm d. Each molecule must react with ninhydrin to form a yellow product.
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Two of the common amino acids are analyzed. Amino acid C and amino acid H both have an isoelectric point in the range of 5.0-6.5. Which must be a characteristic of both amino acid C and amino acid H?)
a. Each molecule must contain two stereogenic centers.
b. Each molecule must have an R-group that is uncharged at pH=7.0.
c. Each molecule must have an R-group that absorbs light at 280 nm
d. Each molecule must react with ninhydrin to form a yellow product.
Two of the common amino acids are analyzed. At pH = 7.0, amino acid C is negatively charged while amino acid H is positively charged. Which will be a characteristic of amino acid C?
a. It will be fully protonated at pH = 1.0 with a net charge of +2.
b. It will be fully deprotonated at pH = 14 with a net charge of -1.
c. It will have three pKa values, two of which occur above pH = 7.0.
d. It will have only one isoionic point which is found below pH = 7.0
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