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E.coli is gram -ve and should stain pink in gram staining. The reason for its blue appearance is due to the over absorption of dye which can be due to either prolonged contact of dye or delay in washing or may be the concentration of soloution of dye is high

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What shape is ecoli?

E. coli is a gram negative rod shaped bacteria (it is long and thin).


Is klebsiella gram positive or negative?

i believe it is a gram bacteria which causes respiratory illness.


Give the example for gram positivegram negative bacteria?

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What is the structural difference in the cell walls of gram-negative bacteria that distinguishes them from gram-positive bacteria?

Gram-negative bacteria have a thinner peptidoglycan layer in their cell walls compared to gram-positive bacteria. Additionally, gram-negative bacteria have an outer membrane that contains lipopolysaccharides, which is absent in gram-positive bacteria.


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Yes, gram-negative bacteria possess lipopolysaccharides.


Are endotoxins produced by gram-negative bacteria?

Yes, endotoxins are produced by gram-negative bacteria.


Which Gran Positive or negative which is more serious?

Gram positive bacteria responds to the Gram stain; gram negative bacteria does not. The two bacteria do not respond to the same antibiotics. Right now the most dangerous bacteria is a gram negative bacteria. That could change.


Is azospirillum a gram positive bacteria?

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Does Tetracycline kill gram positive or gram negative bacteria?

Tetracycline kills both gram positive and gram negative bacteria. The mode of action to which Tetracycline works to kill bacteria is that it inhibits protein synthesis which works against both gram positive and gram negative bacteria.


What Diseases are caused by gram negative rod bacteria?

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Do gram negative bacteria have peptidoglycan in their cell walls?

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