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Bicarbonate

Bicarbonate

(Science: chemistry) a carbonate in which but half the hydrogen of the acid is replaced by a positive element or radical, thus making the proportion of the acid to the positive or basic portion twice what it is in the normal carbonates; an acid carbonate; sometimes called supercarbonate.

They are an important factor in determining the ph of the blood and the concentration of bicarbonate ions is regulated by the kidney. Levels in the blood are an index of the alkali reserve or buffering capacity.

Pharmacological action: buffers.


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Re: Hydration of CO2 and Dehydration of Bicarbonate

It's an animal cell , if that helps.

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by mathsphd
Sun Apr 12, 2009 10:59 pm
 
Forum: Cell Biology
Topic: Hydration of CO2 and Dehydration of Bicarbonate
Replies: 2
Views: 320

Hydration of CO2 and Dehydration of Bicarbonate

Hi All, I am asking myself this question, can you please help if you know an answer: which reaction is faster biologically? CO2 ---> HCO3 + H+ (hydration) taking place outside the cell. CO2<--- HCO3 + H+ (dehydration) taking place inside the cell Many thanks,

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by mathsphd
Sun Apr 12, 2009 1:20 pm
 
Forum: Cell Biology
Topic: Hydration of CO2 and Dehydration of Bicarbonate
Replies: 2
Views: 320

Mechanisms that prevent urine's pH drop to dangerous levels?

Can anyone help me to name 2 most important mechanisms that prevent the pH or urine from falling to dangerously low levels? Is it bicarbonate and phosphate buffer systems?

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by Vangeek
Mon Apr 06, 2009 2:27 am
 
Forum: Human Biology
Topic: Mechanisms that prevent urine's pH drop to dangerous levels?
Replies: 0
Views: 239

Mechanisms that prevent urine's pH drop to dangerous levels?

Can anyone help me to name 2 most important mechanisms that prevent the pH or urine from falling to dangerously low levels? Is it bicarbonate and phosphate buffer systems?

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by Vangeek
Mon Apr 06, 2009 1:59 am
 
Forum: Physiology
Topic: Mechanisms that prevent urine's pH drop to dangerous levels?
Replies: 1
Views: 525

diarrhea

... of solutes to maintain the osmotic gradient. Electrolytes in the intestinal lumen are lost. I also get that there is a significant amount of bicarbonate in the intestinal lumen to neutralize the acidic contents coming from the stomach. During diarrhea the bicarbonate is lost with the fecal ...

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by jmyhre
Sun Feb 08, 2009 6:13 pm
 
Forum: Human Biology
Topic: diarrhea
Replies: 2
Views: 569
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