Biology Forum › Cell Biology › I really need help on this problem.
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- August 6, 2006 at 2:17 pm #5423zeroh6xParticipant
If we were to label the CO2’s on citrate, we would find that they are not dealt with equivalently by enzymes in the TCA cycle. Using appropriate vocabulary, explain how the CO2’s differ. Describe how their difference can be observed in the TCA reactions.
p.s. I only know how TCA is working. Pyruvate is oxidized into Co2 and H2O in the TCA reactions. But i don’t seem to understand why they are not dealt with equivalent by enzymes and how they differ then what differecne can be observe? i tried to solve this problem but couln’dt make it. It will be great if anyone can help me out.
- August 6, 2006 at 8:18 pm #52857sdekivitParticipant
follow the carbonatoms druing the Krebs cycle and investigate where they end up.
(you’ll find that pyruvate will yield ATP during the second cycle in the Krebs cycle)
- August 6, 2006 at 11:24 pm #52859zeroh6xParticipant
But that doesn’t seemed to answer my question. I am really stuck now
- August 6, 2006 at 11:50 pm #52860mithParticipant
http://web.indstate.edu/thcme/mwking/tca-cycle.html
I think it might be referring to the isocitrate and ketoglutarate reactions…
- August 7, 2006 at 5:27 pm #52888MrMisteryParticipant
Everything you need is in this diagram. You’re welcome.
http://www.ncbi.nlm.nih.gov/entrez/quer … c4.box.307And please rename your topic. I moved it to the cell bio forum.
- August 7, 2006 at 5:49 pm #52891sdekivitParticipantquote MrMistery:Everything you need is in this diagram. You’re welcome.
http://www.ncbi.nlm.nih.gov/entrez/quer … c4.box.307And please rename your topic. I moved it to the cell bio forum.
Great resource. i love this work :D. This is what i meant with: follow the C-atoms during TCA cycle.
- August 7, 2006 at 6:02 pm #52892MrMisteryParticipant
Alberts beats the heck out of any other cell bio book.
- August 8, 2006 at 9:48 am #52931sdekivitParticipantquote MrMistery:Alberts beats the heck out of any other cell bio book.
it really does 😀
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