AMINO ACID METABOLISM QUIZ

An example of the oxidative deamination is

aspartate + hexanoic acid = glutamate + Oxaloacetate

aspartate + α-ketoglutarate = glutamate + oxaloacetate

glutamate = hexanoic acid + NH3

glutamate = α-ketoglutarate + NH3

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A person with phenylketonuria will convert

phenylpyruvate to phenylalanine

tyrosine to phenylalanine

phenylalanine to isoleucine

phenylalanine to phenylpyruvate

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A person suffering from phenylketonuria on consumption food containing high phenylalanine may lead to the accumulation of

phenylpyruvate

isoleucine

phenylalanine

tyrosine

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A best described ketogenic amino acid is

lysine

none of these

tryptophan

valine

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Oxidative deamination is the conversion of an amino

acid to a keto acid plus ammonia

acid to a carboxylic 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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A glucogenic amino acid is one which is degraded to

pyruvate or citric acid cycle intermediates

either acetyl CoA or acetoacetyl CoA

None of these

keto-sugars

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Transaminase enzymes are present in

liver

none of these

pancreas

intestine

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Transamination is the process where

None of these

carboxyl group is transferred from amino acid

α-amino group is removed from the amino acid

polymerisation of amino acid takes place

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Lysine is degraded to acetoacetyl CoA and is described as a

none of these

glucogenic amino acid

keto-gluco amino acid

ketogenic amino acid

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A ketogenic amino acid is one which degrades to

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

either acetyl CoA or acetoacetyl CoA

keto-sugars

pyruvate or citric acid cycle intermediates

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