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Understanding Biohazards: Structure and Impact of Bacteria and Viruses

This collection delves into the intricate structures and effects of various bacteria and viruses, including Typhoid, Pneumonia, and Botulism bacteria, as well as viruses like the Bacteriophage and Measles. It highlights how contaminated food and water can harbor dangerous bacteria, how our immune system combats these pathogens, and the implications of the toxins they produce. Visual representations demonstrate how viruses interact with host cells, showcasing the profound impact of these microorganisms on health.

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Understanding Biohazards: Structure and Impact of Bacteria and Viruses

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  1. Biohazards Bacteria and Viruses

  2. Structure of a Bacterium

  3. Set 20—No. 2: Typhoid Bacteria—2000 X

  4. Set 20—No. 2: Typhoid Bacteria More info: The long “threads” are flagella. Water and food contaminated by infected material may contain the bacteria.

  5. Set 20—No. 3: Pneumonia Bacteria—2000 X

  6. Set 20—No. 3: Pneumonia Bacteria More info: White blood cells usually kill them as fast as they grow, preventing us from getting sick.

  7. Set 20—No. 6: Botulism Bacteria—2000 X

  8. Set 20—No. 6: Botulism Bacteria More info: This bacterium causes “food poisoning”. Killing the bacteria will not destroy the toxin it produces.

  9. Structure of Viruses

  10. Set 97—No. 1: Bacteriophage Virus—45,000 X Close up of virus

  11. Set 97—No. 1: Bacteriophage Virus More info: The V and the arrows show the viruses. The line at the top left = 1 micrometer or 1 x 10-6 m. E = E. coli bacterium

  12. Set 97—No. 6: Viruses Breaking out of a Cell—90,000 X

  13. Set 97—No. 6: Viruses Breaking out of a Cell More info: Three viruses can be seen here. A cell membrane (M) is a wall surrounding a cell that protects the cell.

  14. Set 97—No. 4: Measles Virus Damage—400 X

  15. Set 97—No. 4: Measles Virus Damage More info: Normal cells are separated from each other and have rounded nuclei. Infected cells have no cell membrane and clump together. The virus are too small to be seen here.

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