"

13 Preparation

 

Review the figures below to learn about bacterial cell structure, shape, and growth.

 

 

Bacterial structures

  • Pilus
  • Flagellum
  • Capsule
  • Cell wall
  • Plasma membrane
  • Nucleoid
  • Ribosome
  • Plasmid

 

 

 

 

Bacterial shapes

  • Cocci

    • Coccus
    • Diplococci
    • Diplococci (encapsulated)
    • Staphylococci
    • Streptococci
    • Sarcina coccus
    • Tetrad coccus

  • Bacilli

    • Coccobacillus
    • Bacillus
    • Diplobacilli
    • Streptobacilli

    • Palisades

  • Appendaged bacteria

    • Hypha
    • Stalk

  • Others

    • Club rod
    • Vibrio
    • Spirillum
    • Helical Form
    • Spirochete
    • Filamentous

 

 

 

 

Bacterial growth phases over time

  • Lag phase (slow growth)
  • Log phase (exponential growth)
  • Stationary phase (growth plateau)
  • Death phase (decline, depends on the microbe and growth conditions)

Next, read pages 2-5 of this document about the Biolog GEN III MicroPlate™ (text, ~10 min). We will begin by practicing the use of a multi-channel pipette with containers (“reservoirs”) with water and food coloring.

License

Icon for the Creative Commons Attribution 4.0 International License

Biotechnology and Sustainability Copyright © by Carlos Goller is licensed under a Creative Commons Attribution 4.0 International License, except where otherwise noted.

Share This Book