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Bacterial cell structure

Bacterial cell structure. General Bacteriology. Microorganisms are small unicellular organisms that can not be seen by the naked eye. They include: Bacteria. Viruses. Fungi. Bacteria

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Bacterial cell structure

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  1. Bacterial cell structure General Bacteriology

  2. Microorganisms are small unicellular organisms that can not be seen by the naked eye. They include: • Bacteria. • Viruses. • Fungi. • Bacteria • Bacteria are small prokaryotic (pro- before, karyon- nucleus) unicellular organisms that multiply by binary fission. • Properties of bacteria: • Approximately 1 um (0.2 – 8 um) in diameter. • Seen by light microscopy. • Have both of DNA and RNA. • Grow on artificial media. • Divide by binary fission. • Sensitive to antibiotics.

  3. Differences between prokaryotes / eukaryotes The prokaryotic cell: - has no nuclear membranes, mitochondria, endoplasmic reticulum, Golgi body, phagosomes and lysosomes. single circular chromosome. - False nucleus 70 s Ribosomes

  4. Bacterial Morphology and Structure

  5. Bacterial shapes and arrangements Cocci (ball-shaped) Chains: Streptococci. Grape-like cluster: Staphylococci. Diplococci: Pneumococci. Bacilli (rod-shaped) E. coli, Proteus. Some bacilli are curved(Vibrios) Vibriocholerae). Spirals (spiral-shaped) Treponema palladium

  6. Bacterial Shapes and arrangements

  7. Bacterial Cell Structure

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