AMINO ACID METABOLISM QUIZ

A person with phenylketonuria will convert

tyrosine to phenylalanine

phenylalanine to phenylpyruvate

phenylalanine to isoleucine

phenylpyruvate to phenylalanine

TRUE ANSWER : ?
YOUR ANSWER : ?

A ketogenic amino acid is one which degrades to

keto-sugars

either acetyl CoA or acetoacetyl CoA

pyruvate or citric acid cycle intermediates

multiple intermediates including pyruvate or citric acid cycle intermediates and acetyl CoA or acetoacetyl CoA

TRUE ANSWER : ?
YOUR ANSWER : ?

The most toxic compounds is

phenylalanine

lysine

tyrosine

phenylpyruvate

TRUE ANSWER : ?
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A person with phenylketonuria is advised not to consume which of the following products?

Aspartame

Glucose

Glycine containing foods

Fat containing food

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In the normal breakdown of phenylalanine, it is initially degraded to

phenylpuruvate

lysine

tyrosine

fumarate

TRUE ANSWER : ?
YOUR ANSWER : ?

Oxidative deamination is the conversion of an amino

group from an amino acid to a keto acid

acid to a keto acid plus ammonia

acid to a carboxylic acid plus ammonia

group from an amino acid to a carboxylic acid

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YOUR ANSWER : ?

Lysine is degraded to acetoacetyl CoA and is described as a

none of these

keto-gluco amino acid

glucogenic amino acid

ketogenic amino acid

TRUE ANSWER : ?
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Histidine is degraded to α-ketoglutarate and is described as a

keto-gluco amino acid

gluco amino acid

glucogenic amino acid

ketogenic amino acid

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Tyrosine is degraded to acetoacetyl CoA and fumarate and is described as a

ketogenic and glucogenic amino acid

glucogenic amino acid

ketogenic amino acid

keto-gluco amino acid

TRUE ANSWER : ?
YOUR ANSWER : ?

Transamination is the transfer of an amino

group from an amino acid to a carboxylic acid

group from an amino acid to a keto acid

acid to a keto acid plus ammonia

acid to a carboxylic acid plus ammonia

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