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Structure and Properties of Amino Acids

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

amphions
ion conversion
zwitterions
ambions

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Structure and Properties of Amino Acids
Which of the following amino acid is known as half-cystine residue?

Isoleucine
Valine
Histidine
Cysteine

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Structure and Properties of Amino Acids
Which pair of amino acids absorbs the most UV light at 280 nm?

Trp & Tyrosine
Phenylalnine & Proline
Cystein & Asparagine
Threonine & Histidine

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Structure and Properties of Amino Acids
The isoelectric point of an amino acid is defined as the pH

where the molecule carries no electric charge
where the carboxyl group is uncharged
where the amino group is uncharged
of maximum electrolytic mobility

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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 __________ .

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

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Structure and Properties of Amino Acids
D-Alanine and L-Alanine are technically known as

epimers
enantiomers
polymer
anomers

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MORE MCQ ON Structure and Properties of Amino Acids

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