AMINO ACID METABOLISM QUIZ

Transamination is the transfer of an amino

group from an amino acid to a keto acid

group from an amino acid to a carboxylic acid

acid to a keto acid plus ammonia

acid to a carboxylic acid plus ammonia

TRUE ANSWER : ?
YOUR ANSWER : ?

Transaminase enzymes are present in

none of these

liver

intestine

pancreas

TRUE ANSWER : ?
YOUR ANSWER : ?

A glucogenic amino acid is one which is degraded to

None of these

keto-sugars

pyruvate or citric acid cycle intermediates

either acetyl CoA or acetoacetyl CoA

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following amino acids is considered as both ketogenic and glucogenic?

Valine

Tryptophan

None of these

Lysine

TRUE ANSWER : ?
YOUR ANSWER : ?

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

ketogenic amino acid

keto-gluco amino acid

glucogenic amino acid

ketogenic and glucogenic amino acid

TRUE ANSWER : ?
YOUR ANSWER : ?

A ketogenic amino acid is one which degrades to

pyruvate or citric acid cycle intermediates

either acetyl CoA or acetoacetyl CoA

keto-sugars

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

TRUE ANSWER : ?
YOUR ANSWER : ?

A person with phenylketonuria will convert

phenylpyruvate to phenylalanine

tyrosine to phenylalanine

phenylalanine to phenylpyruvate

phenylalanine to isoleucine

TRUE ANSWER : ?
YOUR ANSWER : ?

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

isoleucine

tyrosine

phenylalanine

phenylpyruvate

TRUE ANSWER : ?
YOUR ANSWER : ?

Transamination is the process where

α-amino group is removed from the amino acid

carboxyl group is transferred from amino acid

None of these

polymerisation of amino acid takes place

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Tryptophan

Valine

None of these

Lysine

TRUE ANSWER : ?
YOUR ANSWER : ?

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