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Structure and Properties of Amino Acids

Structure and Properties of Amino Acids
Protein fluorescence arises primarily from which residue?

Arginine
Tyrosine
Tryptophan
Phenylalanine

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Structure and Properties of Amino Acids
Which of the following amino acids can form hydrogen bonds with their side (R) groups?

Aspartic acid
Glutamine
All of these
Asparagine

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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 __________ .

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

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Structure and Properties of Amino Acids
Which of the following is a nonprotein amino acid?

Dopamine
Cystine
None of these
Hydroxylysine

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Structure and Properties of Amino Acids
Molecules that bear charged groups of opposite polarity are known as

zwitterions
amphions
ambions
ion conversion

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Structure and Properties of Amino Acids
The sequence of letters 'WYQN' will represent

Tryptophan, tyrosine, glutamic acid, asparagine
Tryptophan, glutamine, tryptophan, asparagine
Glutamine, tyrosine, tryptophan, aspartic acid
Tryptophan, tyrosine, glutamine, asparagine

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