Final Exam tutorial 3 Flashcards
(13 cards)
A glucogenic Amino acid is a molecule….
That can be degraded to a ketoglutarate
If the catabolism of an amino acid yields the molecule shown, such an amino acid is to be considered….
Ketogenic
How many common pathways can be identified for the catabolism of the 20 amino acids
6
The reaction that converts alanine to pyruvate is what type of reaction
Transamination
Proline and arginine can be synthesized from glutamate with the involvement of which of the following molecules?
ATP
Alanine aminotransferase transfers an amino group from glutamate to —- to from — and —-
Pyruvate. alanine, <-Ketoglutarate
What is the source of the extra nitrogen when glutamine is synthesized from glutamate?
NH3
Which amino acid is the precursor for both cysteine and glycine ?
Serine
Which of the following amino acids cannot be synthesized in humans
Phenylalanine
in which form is nitrogen transported from the brain and muscle to the liver ?
Glutamine
what are the two cellular locations of the urea cycle ?
cytosol and mitochondria
in the urea cycle, how many enzymes contribute to the different steps of the cycle
5