Gram Positive: blue/purple in colour, The cell wall is one thick layer, No flagella, Produces spores, Low resistance to antibiotics, Clostridium botulinum and streptococci, Gram negative: Pink in colour, The cell wall contains two thin layers, Has flagella, No spore-production, High resistance to antibiotics, E.Coli and salmonella,

Characteristics of gram-positive and gram-negative bacteria

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