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Gradients

See gradient (singular) for definition and additional information.


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Re: ?{REGENERATION}? Is it possible ???!!

... be a requirement for regeneration? A hormone that starts the differentiation development again. And has to start the regeneration process with gradients of factors right at the beginning. With all that massive destruction of cells (amputation), there has to be a release of a threshold gradient ...

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by kolean
Fri Jun 26, 2009 12:37 pm
 
Forum: Cell Biology
Topic: ?{REGENERATION}? Is it possible ???!!
Replies: 31
Views: 1657

how does ATP work?

... case of ATP: on the type of enzymes it binds to). Myosin uses ATP to make mechanical work; ion pumps use ATP to make transmembrane concentration gradients, etc.

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by Borisfen
Mon Feb 16, 2009 8:17 am
 
Forum: Cell Biology
Topic: how does ATP work?
Replies: 2
Views: 7079

PaCO2 levels dnt rise as fast as PaO2 levels fall...

... PaCO2 levels dont rise as fast as PaO2 levels fall b/c of a greater diffusibility of CO2 . Does it have to do w/ the different partial pressure gradients of the two gases when loading/unloading at the tissues? I've got myself all wound up here. There is a difference in the way both gases travel ...

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by phuturephysician
Fri Jan 30, 2009 12:57 am
 
Forum: Physiology
Topic: PaCO2 levels dnt rise as fast as PaO2 levels fall...
Replies: 2
Views: 1443

Why CO2 levels don't rise as fast as 02 levels fall...

Why do CO2 levels not rise as fast as 02 levels fall in arterial blood?? Does it have to do with differences in partial pressure gradients for the two gases? Or what about the weak and reversible bond between O2 and hemoglobin? Or the Bohr effect, where in the presence of higher concentrations ...

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by phuturephysician
Fri Jan 30, 2009 12:30 am
 
Forum: Human Biology
Topic: Why CO2 levels don't rise as fast as 02 levels fall...
Replies: 0
Views: 400

Na/K Pump in cold conditions

On the plasma membrane, there are Na and K diffuse passively according to their gradients. Then there is the active Na/K pump that pumps against the respective gradients. My question is, what would happen if body temp decreases very quickly? I think that since the ...

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by toshiba8899
Thu Jan 29, 2009 5:26 am
 
Forum: Cell Biology
Topic: Na/K Pump in cold conditions
Replies: 2
Views: 523
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