Bio & Biochem Quiz
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FOUNDATIONAL CONCEPT 1: BIOMOLECULES AND METABOLISM
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A short peptide is placed in a solution at pH 2.0. Consider a residue with a side chain containing a carboxyl group (–CH2_2–COOH) in addition to the backbone carboxyl. Which statement is most consistent with the side-chain charge of that residue at pH 2.0? General amino acid: H3N+−CH(R)−COO−\mathrm{H_3N^+-CH(R)-COO^-}
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