Protein Metabolism TU

Where the urea cycle occurs .....

• Liver

• Pancreas

• Kidney

• Gall bladder

Tags

NGSS.HS-LS2-3

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

Tags

NGSS.HS-LS1-7

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