click below
click below
Normal Size Small Size show me how
Microbiology
| Term | Definition |
|---|---|
| Passive | Diffusion, Osmosis, Facilitated |
| Active | Endocytosis, Exocytosis |
| Solvent | Liquid-usually water |
| Solute | Other Material |
| Cell size | very small |
| Cell shape (morphology | Coccus, Bacillus, Spiral/curves |
| Coccus | round, spherical, oval |
| Bacillus | Rod, short rods that have roundness, Pill, coccobicillus |
| Spiral/Curves | Vibrios, Spirillum, Spirochete |
| Groupings | Chain, Packet, Cluster/Irregular |
| Growth Media | Slant tube, Broth tube, Plate |
| Lag phase | Bacteria is just getting use to new home, make molecules needed to start growing, Lenght of time in this phase depends upon amount of nutrients |
| Exponential phase | Cells dividing at even rate, focus on cell numbers, cells at risk, cells making variety of molecules: ex proteints, amino acids, toward end of this phase thins start to slow down |
| Stationary phase | Energy and nutrients are almost gone, cell growth=cell death |
| If nutrients are pretty much gone how can some cells keep growing | Go canibal |
| Death phase | Cells are dying at a constant but slow rate, no reproduction |
| Prolonged decline | Interesting a small number are still alive living off of their family....fight to the finish, can only be days, can be years |
| Environmental Factors | Temperature, oxygen, pH, water |