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Proton

proton

(Science: physics) An elementary atomic particle with a positive charge and a mass of about 1 amu.


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Re:

... name 'acids' to the molecules? I had thought of it.. I wanted some confirmation. According the Bronstead-Lowry acid/base theory, an acid donates a proton to solution and a base accepts it, not the other way around as you are saying. Phosphates are negatively charged because they have already dissociated ...

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by aptitude
Thu Sep 15, 2011 12:26 am
 
Forum: Molecular Biology
Topic: Nucleic 'acids'
Replies: 5
Views: 374

Charge transport through DNA

... Had anybody met papers where charge transfer was described ( not along single DNA but between different single DNA in the double helix ) ? The proton transfer in the hydrogen bond was described. Therefore this case is not interesting. It is interesting - is electron transfer possible through ...

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by limarodessa
Sun Jul 17, 2011 8:53 am
 
Forum: General Discussion
Topic: Charge transport through DNA
Replies: 1
Views: 188

Re: Free hydrogen in humans

... particular in the mitochondria. Without chemiosmosis you'd die pretty quickly. http://en.wikipedia.org/wiki/Chemiosmosis The ATPase is basically a proton pump running in reverse.

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by jonmoulton
Fri Jun 10, 2011 3:37 pm
 
Forum: Molecular Biology
Topic: Free hydrogen in humans
Replies: 7
Views: 602

Free hydrogen in humans

See, I thought they were involved with proton pumps but then I read that those are only in non-human cells. And yeah, I just mean protons/hydrongs. Not actual gasses.

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by squeehunter
Fri Jun 10, 2011 2:25 pm
 
Forum: Molecular Biology
Topic: Free hydrogen in humans
Replies: 7
Views: 602

How do gram-positive build proton gradient? No periplasm..

Hi The proton gradient in bacteria are mostly used to create ATP and to drive the flagella as far as I know. In gram-negative bacteria such as E. coli this is easy for me to understand, just send the protons out to the periplasm ...

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by poobear
Mon May 16, 2011 9:11 pm
 
Forum: Cell Biology
Topic: How do gram-positive build proton gradient? No periplasm..
Replies: 0
Views: 232
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