Amino Acid Metabolism Flashcards
1
Q
Why does urea cycle only take place in the liver
A
Because the enzyme arginine only present in the liver
2
Q
What enzymes catalyzes the first two reactions on urea synthesis in the mitochondria
A
Carbomoyl phosphate synthetase 1
Ornithine transcarbomoylase
3
Q
Where do the first two reaction of the urea synthesis occur
A
Mitochondria
4
Q
The first reaction of the urea cycle is a reversible reaction,T/F
A
False :it is an irreversible reaction
5
Q
Ornithine enters the mitochondria by which transporter
A
Ornithine citrulline transpoter
6
Q
Citrulline combines with aspartate to form arginosuccinate in The mitochondria ,TRUE OR FALSE
A
False because the reaction take place in the cell cytosol
7
Q
The urea cycle is linked to the TCA cycle by ——?
A
Fumarate
