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Proton gradient

Proton gradient

in biology, the proton gradient may be used as an intermediate energy source for heat and flagellar rotation. It results from the higher concentration of protons outside the inner membrane of the mitochondria than inside the membrane, and becomes the driving force behind atp synthesis/hydrolysis.


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bacterial ETC

... electron transport chain is located in the plasma membrane and the proton gradient is from outside the cell (high conc.) to inside (low conc.), then if bacteria are ...

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by Adz795
Wed Jan 25, 2012 7:53 pm
 
Forum: Cell Biology
Topic: bacterial ETC
Replies: 0
Views: 1536

Photosynthesis question...

Splitting water releases two electrons and two protons. The electrons are used to transport the protons from the stroma to the ... protons are specific cytochromes in the electron transport chain. This proton gradient is used to synthesize ATP using chemiosmosis, and the electrons are eventually ...

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by aptitude
Fri Oct 28, 2011 1:46 am
 
Forum: Cell Biology
Topic: Photosynthesis question...
Replies: 3
Views: 3703

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 ...

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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: 1
Views: 2135

Emission Intensity Profiles

(1)(a) A proton gradient can be analyzed using fluorescent dyes whose emission intensity profiles depend upon pH. One such dye, ...

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by niravana21
Wed May 04, 2011 8:51 pm
 
Forum: Cell Biology
Topic: Emission Intensity Profiles
Replies: 1
Views: 2304

Protons in Cellular Respiration

Where do the protons in oxidative phosphorylation come from? (The proton gradient is formed to make ATP through ATP synthase) I know in plants the proton gradient is made by splitting ...

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by jellyksong
Fri Apr 22, 2011 5:50 pm
 
Forum: Cell Biology
Topic: Protons in Cellular Respiration
Replies: 1
Views: 2544
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