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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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Stem Cells and Cell division?

I. Stem cells are central to three processes in an organism: development, repair of adult tissue ... produce all the cell types of the species including the trophoblast and the embryonic membranes. Development begins when the zygote undergoes several successive cell divisions, ...

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by RZachary1
Wed Jan 14, 2015 5:51 am
 
Forum: Cell Biology
Topic: Stem Cells and Cell division?
Replies: 6
Views: 5430

Re: Beginner Microbiologist, looking for a place to start.

... macromolecules and their subunits, glycolysis and Krebs cycle, membranes and membrane potential, transmembrane signaling, gene expression ... old (five kingdom) and new (three kingdom) classifications of life, cell envelope structural differences within and between the eubacteria and ...

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by jonmoulton
Mon Dec 15, 2014 5:33 pm
 
Forum: General Discussion
Topic: Beginner Microbiologist, looking for a place to start.
Replies: 1
Views: 1084

Spontaneous formation of nuclear membrane

I have doubt regarding double membranes around nucleus. Single membrane structures may be formed spontaneously due ... But how double membrane architecture in nucleus form spontaneously after each cell division? In the case mitochondria and chloroplast, the double membrane is form ...

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by josem
Sun Jun 22, 2014 1:14 am
 
Forum: Cell Biology
Topic: Spontaneous formation of nuclear membrane
Replies: 1
Views: 2678

A theoretical question - Genetic manipulation

... viruses from causing disease in unrelated organisms - differences in cell membranes and/or cellular metabolism.

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by Cat
Sun Dec 08, 2013 6:49 pm
 
Forum: Microbiology
Topic: A theoretical question - Genetic manipulation
Replies: 4
Views: 7867

Bacterial Taxonomy

... most common method being binary fission. They all have peptidoglycan cell walls , unlike archaea. Deeply Branching Bacteria The major phyla of ... Deinococcus-Thermus, and Aquificae. What are their cell walls and membranes like? Deinococcus has an outer membrane similar to that of Gram-negatives, ...

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by wildfunguy
Sat Oct 19, 2013 6:12 pm
 
Forum: Microbiology
Topic: Bacterial Taxonomy
Replies: 3
Views: 7208
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