Structure of bacterial cell
Cell wall        Gram(+) cell wall                                                 Gram(-) cell wall thick peptidoglycane...
Gram stain method
Cell wall:Peptidoglycane or murein network-like polymere surrounds the cell like net bag many layers very rigid Gram(...
Flagella-for motilitylong spiral protein chains-flagellin
Position Of flagella
Pili- for attachment;- for changing ofDNA betweenbacteria (sex ofbacteria).
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
Bls 107 general microbiology
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Bls 107 general microbiology

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Bls 107 general microbiology

  1. 1. Structure of bacterial cell
  2. 2. Cell wall Gram(+) cell wall Gram(-) cell wall thick peptidoglycane  thin peptidoglycane  no teichoic acids teichoic acid, lipoteichoic acid  outer membrane - .molecular screen.  integral proteins polysaccharides  Porins  permeases,  translocation proteins  protein receptors  lipopolysaccharide LPS = endotoxin (negative charge, hydrophobic, anti-phagocytotic, toxic)  lipid A  core polysaccharides  O-antigen
  3. 3. Gram stain method
  4. 4. Cell wall:Peptidoglycane or murein network-like polymere surrounds the cell like net bag many layers very rigid Gram(+): lysozyme may break protoplast Gram(-): penicillin may break spheroplast L-form
  5. 5. Flagella-for motilitylong spiral protein chains-flagellin
  6. 6. Position Of flagella
  7. 7. Pili- for attachment;- for changing ofDNA betweenbacteria (sex ofbacteria).
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