AMINO ACID METABOLISM QUIZ

A glucogenic amino acid is one which is degraded to

either acetyl CoA or acetoacetyl CoA

pyruvate or citric acid cycle intermediates

None of these

keto-sugars

TRUE ANSWER : ?
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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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A ketogenic amino acid is one which degrades to

either acetyl CoA or acetoacetyl CoA

pyruvate or citric acid cycle intermediates

keto-sugars

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

TRUE ANSWER : ?
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A best described ketogenic amino acid is

tryptophan

valine

lysine

none of these

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A person with phenylketonuria cannot convert

phenol into ketones

phenylalanine to tyrosine

phenylalanine to lysine

phenylalanine to isoleucine

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Which of the following is the best described glucogenic amino acid?

Valine

None of these

Lysine

Tryptophan

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

tyrosine

phenylpuruvate

lysine

fumarate

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Transamination is the transfer of an amino

acid to a carboxylic acid plus ammonia

acid to a keto acid plus ammonia

group from an amino acid to a carboxylic acid

group from an amino acid to a keto acid

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An example of the oxidative deamination is

glutamate = hexanoic acid + NH3

aspartate + hexanoic acid = glutamate + Oxaloacetate

aspartate + α-ketoglutarate = glutamate + oxaloacetate

glutamate = α-ketoglutarate + NH3

TRUE ANSWER : ?
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Transamination is the process where

α-amino group is removed from the amino acid

None of these

polymerisation of amino acid takes place

carboxyl group is transferred from amino acid

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