gram bacteria

Cards (73)

  • Gram positive bacteria
    • Bacillus
    • Streptococcus
  • What allows the stain to bind effectively to the Gram Positive bacteria
    The absence of an outer lipopolysaccharide layer
  • Lysozyme
    Hydrolyses the bonds holding the peptidoglycan molecules together in the bacterial walls
  • Penicillin
    Prevents the bonds inter-linking peptidoglycan molecules from forming, making the cell walls structurally weak
  • Water uptake by osmosis
    Can burst the cell when the cell walls are weak
  • What colour do Gram negative bacteria turn after staining when looking under a microscope
    Red or pink
  • Lipopolysaccharide
    Gram negative bacteria have this in their cell wall which Gram positive bacteria don't
  • What does the Lipopolysaccharide layer do

    Protects the cell and excludes dyes
  • Gram negative bacteria

    • Salmonella
    • E.coli
  • Gram negative bacteria are resistant to

    Their protein making cellular machinery
  • What difference do Eukaryotic cells have to Bacteria allowing antibiotics to be taken without affecting the protein production in the Eukaryotic cell
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  • Types of tissues in the human body
    • Epithelial tissue
    • Connective tissue
    • Muscle tissue
    • Nervous tissue
  • Cells form tissues, which form organs, which form systems in the human body