1. Which of the followings is a common nitrogen acceptor for all reactions involving transamimases
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alpha-Ketoglutarate
Pyruvate
Oxaloacetate
Acetoacetate
2. Which out of the following amino acids is not converted to Succinyl coA
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Methionine
Valine
Isoleucine
Histidine
3. Urea is synthesized in
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Cytoplasm
Mitochondria
Both cytoplasm and mitochondria
Lysosomes
4. Which out of the following statements about Glutamate dehydrogenase is correct
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Required for transmination reactions
Universally present in all the cells of the body
Can utilize either of NAD+/NADP+
Catalyzes conversion of glutamate to glutamine
5. The site of amino acid catabolism is the:
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Stomach
Small intestine
Large intestine
Liver
6. Oxidative deamination is the conversion of an amino
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group from an amino acid to a keto acid
acid to a carboxylic acid plus ammonia
acid to a keto acid plus ammonia
group from an amino acid to a carboxylic acid
7. An example of the oxidative deamination is
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glutamate = hexanoic acid + NH3
aspartate + α-ketoglutarate = glutamate + oxaloacetate
glutamate = α-ketoglutarate + NH3
aspartate + hexanoic acid = glutamate + Oxaloacetate
8. Transamination is the process where
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carboxyl group is transferred from amino acid
α-amino group is removed from the amino acid
polymerisation of amino acid takes place
none of the above
9. An example of a transamination process is
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glutamate = hexanoic acid + NH3
aspartate + hexanoic acid = glutamate + oxaloacetate
aspartate + α ketoglutarate = glutamate + oxaloacetate
glutamate = α-ketoglutarate + NH3
10. Which of the following statements about the role of glutamate dehydrogenase is correct?
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Glutamate dehydrogenase has an FAD prosthetic group.
Glutamate dehydrogenase has a pyridoxal phosphate cofactor.
Glutamate dehydrogenase transaminates glutamate producing -ketoglutarate
Glutamate dehydrogenase oxidatively deaminates glutamate producing -ketoglutarate.