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Micro Hybird Bates
Chapter Test 2 Review Chapter 6-Vocabulary
Term | Definition |
---|---|
Colony | Population of cells that arises from a single cell often called a "Colony-Forming unit" |
Psychrophiles | Cold loving microbes |
Mesophiles | Moderate temp loving microbes |
Thermophiles | Heat loving microbes |
Plasmolysis | Loss of water from a cell in hyper-tonic environment |
Halophiles | Organism that requires a high salt concentration for growth |
Acidiophiles | Grow in acidic environments, below pH 4 |
Obligate aerobes | Organism that require molecular oxygen to live |
Facultative anaerobes | An organism that can grow with or w/o molecular oxygen |
Obligate anaerobes | An organism that does not use molecular O2 and is killed in the presence of O2 |
Aerotolerant anaerobes | Cannot use O2 for growth but tolerate it fairly well. (ex. pickles & cheese) |
Microaerophiles | An organism that grows best in an environment with less molecular O2 than is normally found in air |
Biofilms | A microbial community that usually forms a slimy layer on a surface (plaque on teeth, rock in pond) |
CFU | Visible bacterial colonies on solid media |
Dilution | Reducing the concentration of a chemical |
Turbidity | The cloudiness of a suspension |