Bacteria Growth on the Agar Plates - PowerPoint PPT Presentation

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Bacteria Growth on the Agar Plates

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  1. Bacteria Growth on the Agar Plates

  2. Sterile Free from live bacteria or other micro-organisms: • a sterile operating area • sterile instruments. autoclave

  3. Agar • A gelatinous material derived from certain marine algae. • used as food for bacteria and as a thickener in many food products (carrageenan)

  4. inoculate • To introduce micro-organisms or infectious material into a culture medium.

  5. Variables Independent Variables • The factor that is purposely changed EX: The different locations to be swabbed Dependent Variable • The factor that you expect to change as a result of what you purposely changed. EX: the amount of bacteria that grows

  6. Bacillus subtilis

  7. Proteus vulgaris

  8. Staphylococcus aureus • Colonies are large and cream colored

  9. Streptococcus pyogenes • Colonies are smaller and staphylococcus and are white

  10. Candida Albicans

  11. Black Mold • Colonies are fuzzy

  12. Micrococcus luteus • Colonies are bright yellow, shiny, and smooth

  13. Corynebacteria • Dry and crinkly white colonies

  14. E.coli • White/yellow small colonies