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LS FBTP Chapter 1
Bacteria
| Question | Answer |
|---|---|
| Prokaryota | Single-celled creatures with no membrane-bound organelles. Eubacteria and Archaebacteria belong to this group. |
| Cocci | Spherical-shaped bacteria. |
| Bacilli | Rod-shaped bacteria. |
| Spirilli | Corkscrew-shaped bacteria. |
| Flagellum | Whip-like tail used to move about. |
| Tumbling Motility | The manner in which some single-celled creatures move. Forward movement with "tumbles" which are used to change direction. |
| Fission | A process of reproduction in which one cell divides to form two identical "daughter" cells. |
| Aerobe (or obligate aerobe) | A creature that requires oxygen to live. These creatures respire for energy. |
| Anaerobe (or obligate anaerobe) | A creature that cannot tolerate oxygen in the environment. These creatures ferment for energy. |
| Facultative anaerobe | A creature that can live in oxygen or without it. These creatures can either respire or ferment for energy. they prefer to respire. |
| Archae | More primitive form of bacterial life; found in the earliest rock record. Often, these are adapted to the harshest of environments. Sometimes called extremophiles. |
| Saprophyte | A creature that consumes dead and/or decaying organisms for food. |
| Pathogen | Any organism that causes disease. |
| Endospore | Thick-walled structures made by some bacteria in response to an environmental stress. When conditions are favorable, the bacteria may emerge from the spore state and continue its life cycle.. |
| Vaccine | Medicine which helps your body recognize and kill bacterial pathogens. |
| Gram Positive | A group of Eubacteria with a thick cell wall and one cell membrane. Stain purple with Gram stain. |
| Gram Negative | A group of Eubacteria with a thin cell wall sandwiched between two cell membranes. Stain pink with Gram stain. |
| Peptidoglycan | Chemical that forms the cell wall material in prokaryotes. Also known as Murein. |
| Staph | Bacteria that group themselves in clusters. |
| Strep | Bacteria that group themselves in chains. |
| Diplo | Bacteria that group themselves in pairs. |
| Monotrichous | Refers to cells with one flagellum, found at one end of the bacterium. |
| Polytrichous | Refers to cells with multiple flagella, in various arrangements around a cell. |
| Colony Morphology | Describes the form, elevation, color, and other properties of bacterial colonies. |
| Colony | A genetically identical "pile" of bacteria which all have the same single parent cell. |
| Colony Form | The shape of a bacterial colony when viewed from above. |
| Antibiotics | A chemical compound that is used to stop or inhibit the growth of microorganisms. |
| Toxin | A poisonous substance |
| Microaerophilic | A creature that requires a small amount of oxygen to live. Too much oxygen kills it. No oxygen also kills it. |
| Aerotolerant | A creature that ferments, but can tolerate oxygen. These have no preference for oxygen in the environment. |
| Monera | An older term which referred to the kingdom bacteria. It is largely abandoned in favor of a 3 domain system. |
| Extremophiles | Creatures that "love" extreme conditions. These can grow in extremes of salt, heat, cold, acidity, etc. |
| Bioremediation | The use of bacteria to repair contamination of soils or other natural habitats. |