DrVirgo
Forum Hero
Topics: 1058
Posts: 3,381
|
This one has been discussed before, but I found that people still vary on the right answer? Can we discuss it again and come to an agreement on the right answer?
BIOCHEM RXNS
ΔG0'
V ↔ W – 4.0
W ↔ X +0.4
X ↔ Y – 3.4
Y ↔ Z + 5.7
From the values of ΔG0' given in the table, which compound in the overall metabolic pathway V ↔ W ↔ X ↔ Y ↔ Z will accumulate in the largest amount at equilibrium?
A) V
B) W
C) X
D) Y
E) Z
___________________
Our greatest glory is not in never falling, but in rising every time we fall.
|
| robin082006
Forum Hero
Topics: 471
Posts: 5,125
|
Y, this q has been discussed many times and answer is still controversial.
Reaction V-Y accumulates -7 so I choose it.
___________________
The Key to Succeed is Patience.
|
| disha
Forum Senior
Topics: 5
Posts: 118
|
I THINK ANSWER IS D
-ENERGY MEANS IT IS A SPONTANEOUS REACTION,BUT +MEANS THE RECTION PROCEEDS BACKWARDS.SO I THINK ITS Y.
|
| liwei
Forum Junior
Topics: 7
Posts: 72
|
W=V-4
X=W+0.4
Y=X-3.4
Z=Y+5.7
So YY has the lowest entropy and is the most stable one
|
| nadiabarati
|
-4+0.4-3.4+5.7=-1.3
So v converts to z and we have accumulation of z
answer is E for sure
|
| alexaE
Forum Elite
Topics: 23
Posts: 334
|
E.
___________________
veni vidi...vincam
|
| rman
Forum Senior
Topics: 39
Posts: 123
|
It's D; each reaction is bidirectional so condensing the reaction into one equation isn't exactly appropriate in this case. (In other words, suppose you DO build up Z...wouldn't the -5.7 on it convert it right back to Y??)
|
|
| |
| | | | | | | |
