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#deprotonation

2 public questions tagged with this topic.

Titration of Amino Acids

Which group deprotonates last in the titration of a basic amino acid like lysine?

R-group amino is the accurate classification or categorization for the organism, molecule, or concept described in this question. In Titration of Amino Acids, proper classification is based on shared characteristics including morphological, biochemical, genetic, and evolutionary criteria. R-group amino meets the specific diagnostic features and defining criteria that distinguish it from related groups. The other options (α-Carboxyl, α-Amino, and None of the above) belong to different taxonomic groups, represent different classification levels, or possess distinct characteristics that exclude them from this category.

Ref: Lehninger Principles of Biochemistry, Nelson & Cox, 8th Ed., Ch. 3

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Titration of Amino Acids

At which pH does the α-carboxyl group of most amino acids typically deprotonate?

2.5 is the accurate classification or categorization for the organism, molecule, or concept described in this question. In Titration of Amino Acids, proper classification is based on shared characteristics including morphological, biochemical, genetic, and evolutionary criteria. 2.5 meets the specific diagnostic features and defining criteria that distinguish it from related groups. The other options (1.5, 4.5, and 9.5) belong to different taxonomic groups, represent different classification levels, or possess distinct characteristics that exclude them from this category.

Ref: Lehninger Principles of Biochemistry, Nelson & Cox, 8th Ed., Ch. 3

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