cellular membrane
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cellular membrane
How thick is a typical cellular membrane? Express in picometres (pm),
nanometres (nm), micrometres (μm) and millemetres (mm).
nanometres (nm), micrometres (μm) and millemetres (mm).
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victor
- King Cobra
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Hey...correction please..afeter reading my new book at last I got the answer...
there's differences between gram+ and gram- in the thickess of the membrane.
gram+
Cytoplasmic membrane: ~8 nm
Peptidoglycane: 15-80 nm
Variable outer membrane: ~8 nm
while for the gram-
Cytoplasmic membrane: ~8 nm
Peptidoglycane: 2 nm
Variable outer membrane: ~8 nm
That's what I got..hope this helps..
there's differences between gram+ and gram- in the thickess of the membrane.
gram+
Cytoplasmic membrane: ~8 nm
Peptidoglycane: 15-80 nm
Variable outer membrane: ~8 nm
while for the gram-
Cytoplasmic membrane: ~8 nm
Peptidoglycane: 2 nm
Variable outer membrane: ~8 nm
That's what I got..hope this helps..
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A: They have all the solutions.
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MrMistery
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Lolza... you where right the first time. You see, the difference between Gram+ and Gram- bacteria is not in the thickness of the cell membrane, but in the thikness of the cell wall(peptidoglycan)
So, by your numbers, cause i do not know exactly, it is 8 nm
So, by your numbers, cause i do not know exactly, it is 8 nm
"As a biologist, I firmly believe that when you're dead, you're dead. Except for what you live behind in history. That's the only afterlife" - J. Craig Venter
victor wrote:there's differences between gram+ and gram- in the thickess of the membrane.
gram+
Cytoplasmic membrane: ~8 nm
Peptidoglycane: 15-80 nm
Variable outer membrane: ~8 nm
while for the gram-
Cytoplasmic membrane: ~8 nm
Peptidoglycane: 2 nm
Variable outer membrane: ~8 nm
Actually how to differential between the gram+ and gram- ?
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chemistry_freako
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Dun quite get u also, but well, thought to differentiate between Gram + and -, the easiest way would be to carry out Gram staining? Gram nagative bacteria are unable to retain the dye and thus appear pinkish under the microscope whereas gram + bacteria which are able to retain the dye, appear purpleish under the microscope =D
化学は、最高です
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victor
- King Cobra
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Waters2 wrote:Nanometer just be right in expressing in the cell membrane because for the picometer is too small for cells and it only right for the particles and sub-particles such as atoms, protons and others.
Ummm...how about expressing it in femtometre???...(10e -15)
Perhaps gram+ can show 'color' when it's dyed because of thicker peptidoglycans I think...
Q: Why are chemists great for solving problems?
A: They have all the solutions.
A: They have all the solutions.
Its more because the peptidoglycans are exposed on the surface of gram+ bacteria while gram- have another phospholipid bilayer over the peptidoglycans. Since the gram stain interacts with the peptidoglycans, the gram+ stain darkly while the gram- don't.
-Jelanen
-Jelanen
'It is futile to pretend to the public that we understand how an amoeba evolved into a man, when we cannot tell our students how a human egg produces a skin cell or a brain cell!'
Dr Jérôme J. Lejeune
Dr Jérôme J. Lejeune
Cell membrane ???
the cell membrane is about 8 nm thick. 
did that answer your question . well keep in touch if you need any more help alright byeeeeeeeeee.
did that answer your question . well keep in touch if you need any more help alright byeeeeeeeeee.I would like to become a pediactirc doctor. I also want to get into med-school. I attend UCLA.
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