mjl1717
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What are the ABSOLUTE differences between gram+ and gram- bacteria??
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| mani
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i would start with thickness of peptidoglycan layer, teichoic acid, outer lip membrane, periplasmic space...............................
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| mjl1717
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Thats not saying which is which.
But for certain under the Capsule gram negatives have an outer membrane and a periplasmic space.
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| mani
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for "which is which"
peptidoglycan layer-thick in G+ve
teichoic acid-G+ve
outer lip membrane G-ve
periplasmic space G-ve
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| mjl1717
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they both have peptidoglycan./thicker in the gram+
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| mani
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perhaps its same as i meant!
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| owen_osh
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Gram +:
Cell wall consisting of a thick layer of peptidoglycan with many pentaglycine bridges
Techoic acid in the cell wall
Purple with Gram stain
Gram -:
Cell wall consisting of periplasmic space
Thin layer of peptidoglycan with fewer crosslinks
Outer membrane bilayer
Inner layer of phospholipid
Outer layer with lipopolysaccharide/LPS/endotoxin
Porins and transport proteins span the outer membrane
Pink with Gram stain
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