WorksheetsProtein Metabolism TU
Total questions: 10
Worksheet time: 5mins
Where the urea cycle occurs .....
Liver
Pancreas
Kidney
Gall bladder
The removal of an amino group from a molecule and return to normal molecule
Transamination
Urea Cycle
Deamination
Transport Amino
Catabolism Carbon Skeleton (2ANS)
Ketogenic
Glucogenic
Aspartate
Citruline
Products of urea cycle
1 urea, 1 NH3, 1 ATP, 1 fumaric acid
1 aspartic acid, 1 NH3, 1 ATP, 1 fumaric acid
1 urea, 1 AMP, 2 ADP, 1 fumarate
2 urea, 2 NH3, 1 ATP, 1 fumaric acid
Where the Ammonia cycle occurs .....
Muscle and liver
Muscle only
Liver only
Liver and cytosol
In what form is N transported through blood to the liver?
Ammonium ion
An amino acid
Gluten
Urea
Histidine is degraded to α-ketoglutarate and is described as a
gluco amino acid
glucogenic amino acid
ketogenic amino acid
keto-gluco amino acid
Which of the following amino acids is considered as both ketogenic and glucogenic?
Valine
Tryptophan
Lysine
None of these
Transamination is the process where
polymerisation of amino acid takes place
carboxyl group is transferred from amino acid
α-amino group is removed from the amino acid
none of all
Which of these best describes the mechanism of action of Ammonia cycle in liver
Alanine + α-ketoglutarate --> pyruvate + glutamate
Aspartate + α-ketoglutarate --> oxaloacetate + glutamate
Glutamate + ammonia --> pyruvate + alanine
Alanine + glutamate --> α-ketoglutarate + pyruvate
