Talk:Adenosine triphosphate
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PLEASE HELP --> What is the importance of ATP formation during Glycosis and Krebs Cycle?
- Sorry, Wikipedia is not a place to ask for help with your homework.
- Actually, there is a place to ask questions like this, just check out the Reference desk. --Lexor|Talk 14:07, Nov 9, 2004 (UTC)
- I stand corrected -- I wasn't aware of the reference desk. However, I hope you'll agree that the original poster's question doesn't go here. Zack
I dont understand why is GTP used in some reaction in place of ATP eg. in gluconeogenesis.
- While ATP and GTP are energetically equivalent (i.e., the same amount of energy can be harnessed from ATP as from GTP), their use in biochemical reactions is enzyme-dependent. Some enzymes, such as succinyl-CoA synthetase, use GTP to drive catalysis. Others, like hexokinase, require ATP instead. Which nucleotide gets used depends heavily on the specificity of the enzyme in question, which in turn depends on the enzyme's amino acid composition and secondary/tertiary structures.
- Also, for what it's worth, the production of GTP instead of ATP by certain enzymes is inconsequential since GTP can be converted to ATP via substrate-level phosphorylation. --Diberri 22:54, 2 Mar 2004 (UTC)
- I believe there is also an anabolic/catabolic and protein/fat/carbohydrate/nucleic acid distinction at work in there as well. My guess is there is separation to allow the cell to target energy resourses to specific pathways. Can anybody confirm this? --Anonymous
[edit]
Copyvio
I removed a section added by User:Jerryseinfeld it was a copyvio: a series of verbatim paragraphs from http://www.hussman.org/fitness/. --Lexor|Talk 13:07, Dec 30, 2004 (UTC)
I noticed that the site has a statement: "Brief quotations which include attribution and a link to this website are authorized for noncommercial use." Nevertheless, I removed it because:
- it was more than a brief quotation (several consecutive paragraphs)
- the GFDL does not restrict commercial use, and we don't encourage the addition of material that prevents commercial reuse or distribution.
So i'm wondering, since ATP is basically how cells store energy, would it be possible to just eat a bunch of ATP's directly and get some energy from them? :) SECProto 01:59, Feb 25, 2005 (UTC)
- It'd be more fun to eat a bunch of LSDs :-) --69.234.183.71 01:09, 19 Mar 2005 (UTC)
