Exam 4 Urea Cycle. Flashcards
1
Q
1
A
Carbamoyl Phosphate synthetase
2
Q
2
A
Ornitene Carbamoyltransferase
3
Q
3
A
Arginosuccinate Synthase
4
Q
4
A
Arginosuccinate Lyase
5
Q
5
A
Arginase
6
Q
CP, C, A, LA, LO
A
Carbamoyl phosphate, citrulline, arginosuccinate, L-arginine, L-ornithene
7
Q
Carbamoyl Phosphate
A
Start point, CO2 + NH3 go in. 1,2
8
Q
Citrulline
A
Goes to Arginosuccinate via L-Aspartate. 3
9
Q
Arginosuccinate
A
Goes to L-Arginine via L-Fumarate. 4
10
Q
L-Arginine
A
Goes to L-Ornithene vis H2O with the loss of Urea. 5
11
Q
Urea Structure
A
O=C-(NH3+)2
12
Q
Which parts of the urea cycle add Nitrogen?
A
1, 2, and 3
13
Q
How much ATP is used by the Urea cycle
A
4 units
14
Q
How much ATP is used by the Aspartate - Arginosuccinate shunt of the citric acid cycle
A
1.5 units
