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STRUCTURE AND PROPERTIES OF AMINO ACIDS

Structure and Properties of Amino Acids
The α-amino acids have a carboxyl group with a pK around __________ , and an amino group with a pK near __________ .

1.1, and 12.1
2.2, and 9.4
3.3, and 10.5
6.5, and 8.0

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Structure and Properties of Amino Acids
Coomassie Blue stains the proteins by reacting with

aromatic ring
arginine residues
peptide bonds
free c-termini

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Structure and Properties of Amino Acids
Which amino acid when exposed to ninhydrin produces a brown color?

Asparagine
Alanine
Valine
Proline

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