joonkimdds
08-09-2006, 06:55 PM
why does it take 6 turns of the calvin cycle to make 1 glucose?
1glucose = 6Carbon => 2PGAL is made in 1 cycle
PGAL = 3C
glucose = 6C
1 cycle makes 2 PGAL = 6C = glucose
so shouldn't it only take 1 turn of the calvin cycle to make 1 glucose?
where am i going wrong :(
ConfusedOne
08-09-2006, 07:06 PM
6 turns makes 12 PGAL. 10 of those goes back to regenerate RuBP. Other 2 into glucose. :)
joonkimdds
08-09-2006, 07:13 PM
6 turns makes 12 PGAL. 10 of those goes back to regenerate RuBP. Other 2 into glucose. :)
but one of the kaplan blue book problem says
10 turns of the calvin cycle will produce:
A: 10 CO2
B: 20 PGAL
C: 20 RBP
D: 36 ATP
E: 5 glucose
and the answer is B)20PGAL
if it's really 20PGAL that means we shouldn't consider PGAL that recycles?
djeffreyt
08-09-2006, 10:47 PM
thinking too much again.
just because something is recycled doesn't mean it was never produced...the question asks how many are produced...doesn't ask for a net amount.
jkh1886
08-09-2006, 10:51 PM
but one of the kaplan blue book problem says
10 turns of the calvin cycle will produce:
A: 10 CO2
B: 20 PGAL
C: 20 RBP
D: 36 ATP
E: 5 glucose
and the answer is B)20PGAL
if it's really 20PGAL that means we shouldn't consider PGAL that recycles?
Joon, come back to this question in 2 years. until then...enjoy your youth and chase some tail!