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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 __________ .

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

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Structure and Properties of Amino Acids
When the amino acid alanine (R-group is CH3) is added to a solution with a pH of 7.3, alanine becomes

an isotope
a cation
nonpolar
a zwitterions

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Structure and Properties of Amino Acids
What is the product of the catabolic breakdown of Alanine?

Pyruvate
Oxaloacetate
Fumarate
Malate

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

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

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Structure and Properties of Amino Acids
What is the product of the catabolic breakdown of Arginine?

Oxaloacetate
Succinate
Fumarate
Alpha-ketoglutarate

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Structure and Properties of Amino Acids
What is the end product of leucine metabolism?

Acetyl carnitine
Oxaloacetic acid
Pyruvic acid
Acetyl-CoA

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