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Cell membranes

Cell membrane

(Science: cell biology) The structure enveloping a cell, enclosing the cytoplasm and forming a selective permeability barrier.

It consists of lipids, proteins and some carbohydrates, the lipids thought to form a bilayer in which integral proteins are embedded to varying degrees.

Synonym: plasma membrane.


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Endosymbiosis = Hybridization Speciation?

... ancient fusing of two prokaryotes — tiny life forms that do not have a cellular nucleus. UCLA molecular biologist James A. Lake reports important ... they will exchange genes; they merge but often keep their own cell membranes and sometimes their own genomes. http://www.sciencedaily.com/releases/2009/08/090819135436.htm ...

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by GaryGaulin
Mon Aug 24, 2009 1:21 am
 
Forum: Evolution
Topic: Endosymbiosis = Hybridization Speciation?
Replies: 0
Views: 50

Micelle

Dear friends, I am pretty new to micelle biology and have some...maybe dumb questions. So, are there any easy ways to ... right? And third, is there a way to let them not fuse with eucaryotic cell membranes in micelle-lymphocyte co-cultures? Thanks a lot for your support! Cheers!

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by TheDude
Tue Aug 04, 2009 3:52 pm
 
Forum: Molecular Biology
Topic: Micelle
Replies: 2
Views: 121

Re:

... for the descendant design to have come from. The behavior of the cell itself produces self-organization into a functional emergent multicellular ... polar) were already self-assembling large quantities of simple cell membranes (vesicles)[2] and numerous crystal designs that like snowflakes ...

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by GaryGaulin
Sat Apr 11, 2009 1:58 am
 
Forum: General Discussion
Topic: Intelligent Design?
Replies: 27
Views: 2317

Re: Caffeine Coursework

... to adenosine, and binds to adenosine receptors on the surface of cells without activating them (an "antagonist" mechanism of action). ... (A2A receptors can also be found on arterial walls and blood cell membranes.) Beyond its general neuroprotective effects, there are reasons ...

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by red.ninja13
Sun Mar 22, 2009 7:39 pm
 
Forum: Human Biology
Topic: Caffeine Coursework
Replies: 3
Views: 864

Mitochondrion- Imprinted to DNA?

The host cell pretty much dictates these functions like it does with all membrane-bound organelles ... the mitochondria might excessively multiply and kill the cell altogether. Cristae and membranes are synthesised similarly as other cellular components: by guidance of the protein ...

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by biohazard
Wed Mar 18, 2009 2:07 pm
 
Forum: Genetics
Topic: Mitochondrion- Imprinted to DNA?
Replies: 9
Views: 806
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