Quiz II (1-7) Flashcards
Given a network with two species, A and B, and four reactions:
R1: A+ B -> 2B
R2: B -> A
R3: A ->
R4: -> A
Which of the following is the stoichiometric matrix N?
[
-1 1 -1 1
1 -1 0 0
]
[
-1 1 -1 1
1 0 0 0
2 0 0 0
]
[
-1 1 0 0
2 -1 -1 1
]
[
1 1 -1 1
1 -1 0 0
]
[
-1 1 -1 1
1 -1 0 0
]
Given a network with two species, A and B, and four reactions:
R1: A+ B -> 2B
R2: B -> A
R3: A ->
R4: -> A
Which of the following is a steady state flux distribution?
[1 1 1 1]T
[2 1 2 1]T
[1 1 3 3]T
[1 1 2 1]T
[1 1 1 1]T
[1 1 3 3]T
Given a network with two species, A and B, and four reactions:
R1: A+ B -> 2B
R2: B -> A
R3: A ->
R4: -> A
Which of the following pairs are fully coupled?
R3 and R4
R1 and R2
R2 and R3
R1 and R3
R3 and R4
R1 and R2
Given a network with two species, A and B, and four reactions:
R1: A+ B -> 2B
R2: B -> A
R3: A ->
R4: -> A
If the upper-bound of all fluxes is 1000, maximizing the steady-state flux through reaction R2 implies…
The steady-state flux through reaction R4 is 1000
The steady state flux through reaction R3 is 1000
The steady-state flux through reaction R1 is 1000
The steady-state flux through reaction R1 is 0
The steady-state flux through reaction R1 is 1000
Given a network with two species, A and B, and four reactions:
R1: A+ B -> 2B
R2: B -> A
R3: A ->
R4: -> A
If the upper-bound to all fluxes is 500, maximizing the steady-state flux through reaction R2 implies that…
The range of reaction R2 at the respective optimum is [0, 500]
The range of reaction R3 at the respective optimum is [-500, 500]
The range of reaction R1 at the respective optimum is [-500, 500]
The range of reaction R4 at the respective optimum is [0, 500]
The range of reaction R4 at the respective optimum is [0, 500]
Given a network with two species, A and B, and four reactions:
R1: A+ B -> 2B
R2: B -> A
R3: A ->
R4: -> A
The network does not contain any exchange reactions - true or false?
FALSE
Given a network with two species, A and B, and four reactions:
R1: A+ B -> 2B
R2: B -> A
R3: A ->
R4: -> A
The network contains directionally coupled reactions - true or false?
FALSE
Given a network with two species, A and B, and four reactions:
R1: A+ B -> 2B
R2: B -> A
R3: A ->
R4: -> A
The rank of the stoichiometric matrix is __ .
(Explain.)
1
Protein complexes in a metabolic network are described by ….
Gene-Protein-Reaction rules.
True or false:
The linear program formulating the Flux Balance Analysis (with non-empty feasible space) is guaranteed to have a single flux distribution realizing the optimum z = max(vbio)
TRUE
