Difference in gram positive and gram negative bacteria
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Bacteria showing response to gram staining is called gram positive bacteria.Bacteria which is not showing response to gram staining is called gram negative bacteria.
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Gram positive;
Retain crystal violent dye and stain blue or purple.
cell wall:20-30nm thick
cell wall is smooth
peptidoglycan is think and multilayer
periplasmic space, outer membrane, porins are absent
Gram negative;
Can be decolorized to accept counterstain (safranin) and stain pink or red
cell wall: 8-12nm thick
cell wall is wavy
peptidoglycan is thin and single layered
periplasmic space, outer membrane are present
porins occurs in outer membrane
Retain crystal violent dye and stain blue or purple.
cell wall:20-30nm thick
cell wall is smooth
peptidoglycan is think and multilayer
periplasmic space, outer membrane, porins are absent
Gram negative;
Can be decolorized to accept counterstain (safranin) and stain pink or red
cell wall: 8-12nm thick
cell wall is wavy
peptidoglycan is thin and single layered
periplasmic space, outer membrane are present
porins occurs in outer membrane
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