Exercise: Amino Acid Metabolism

Questions for: Amino Acid Metabolism

A person suffering from phenylketonuria on consumption food containing high phenylalanine may lead to the accumulation of
A:
phenylalanine
B:
phenylpyruvate
C:
tyrosine
D:
isoleucine
Answer: B
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A best described ketogenic amino acid is
A:
lysine
B:
tryptophan
C:
valine
D:
none of these
Answer: A
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A ketogenic amino acid is one which degrades to
A:
keto-sugars
B:
either acetyl CoA or acetoacetyl CoA
C:
pyruvate or citric acid cycle intermediates
D:
multiple intermediates including pyruvate or citric acid cycle intermediates and acetyl CoA or acetoacetyl CoA
Answer: B
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Lysine is degraded to acetoacetyl CoA and is described as a
A:
ketogenic amino acid
B:
glucogenic amino acid
C:
keto-gluco amino acid
D:
none of these
Answer: A
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Transamination is the transfer of an amino
A:
acid to a carboxylic acid plus ammonia
B:
group from an amino acid to a keto acid
C:
acid to a keto acid plus ammonia
D:
group from an amino acid to a carboxylic acid
Answer: B
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