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Structure and Properties of Amino Acids

Q1: The α-amino acids have a carboxyl group with a pK around __________ , and an amino group with a pK near __________ .

A 1.1, and 12.1

B 6.5, and 8.0

C 3.3, and 10.5

D 2.2, and 9.4

ANS:D - 2.2, and 9.4

This answer is inaccurate. Typically the C terminus has a pka around 3 and the N terminus has a pka around 8. Although these are not exact numbers these are the relative values used.



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