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Lumen

Lumen

(Science: anatomy) The cavity or channel within a tube or tubular organ.


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diarrhea

... solutes in the intestine. Water follows the high concentration 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 ...

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

Re: photosynthesis

... any metal ion just to neutralise/balance it accept protoh from stroma then through vectorial translocation it gives proton(taken from stroma) to lumen,then in lumen proton motive force create because ph decreases due to addition of protons from stroma............my mail id pushpa.pushy@rediffmail.com ...

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by pushy
Wed Dec 03, 2008 9:25 am
 
Forum: Molecular Biology
Topic: photosynthesis
Replies: 2
Views: 841

I need answers to the following questions...

1. Where is most of the water in the following reaction produced? C6H12O6 (glucose) + O2 -----> CO2 + H2O a. chloroplast stroma b. thylakoid lumen c. glycolysis and Krebs cycle d. fermentation e. mitochondrial matrix 2. At the end of mitosis, each G1 daughter cell has _________. a. twice the ...

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by WiseIdiot
Sat Oct 18, 2008 5:55 pm
 
Forum: Cell Biology
Topic: I need answers to the following questions...
Replies: 3
Views: 1030

how do proton pumps help regulate the size of stomata?

that animation does not answer the question. ok, so yes, the light phase of photosynthesis does pump protons into the tylakoidal lumen, creating a gradient that is used later in photophosphorilation to make ATP. There is also some proton pumping involved in stomatal opening, but in this ...

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by MrMistery
Thu Jan 10, 2008 1:49 pm
 
Forum: Cell Biology
Topic: how do proton pumps help regulate the size of stomata?
Replies: 2
Views: 1134

nuclear lamina

lumen: space in a tube(like the inside of a pipe) lamina: can refer to more than one structure. see here: http://en.wikipedia.org/wiki/Lamina lamins: intermediate filaments that make up the nuclear lamina laminin: protein ...

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by MrMistery
Fri Nov 23, 2007 1:00 pm
 
Forum: General Discussion
Topic: nuclear lamina
Replies: 2
Views: 600
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