Exercise: Amino Acid Metabolism

Questions for: Amino Acid Metabolism

A person with phenylketonuria cannot convert
A:
phenylalanine to tyrosine
B:
phenylalanine to isoleucine
C:
phenol into ketones
D:
phenylalanine to lysine
Answer: A
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Which of the following is the best described glucogenic amino acid?
A:
Lysine
B:
Tryptophan
C:
Valine
D:
None of these
Answer: C
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A glucogenic amino acid is one which is degraded to
A:
keto-sugars
B:
either acetyl CoA or acetoacetyl CoA
C:
pyruvate or citric acid cycle intermediates
D:
none of the above
Answer: C
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Which of the following amino acids is considered as both ketogenic and glucogenic?
A:
Valine
B:
Tryptophan
C:
Lysine
D:
None of these
Answer: B
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Histidine is degraded to α-ketoglutarate and is described as a
A:
gluco amino acid
B:
glucogenic amino acid
C:
ketogenic amino acid
D:
keto-gluco amino acid
Answer: B
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