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Microbiology
CCM Biology
| Term | Definition |
|---|---|
| Heterotrophs | Organisms that can't make their own food |
| Autotrophs | Organisms that make their own food |
| Pathogenic | Disease-causing |
| Plasmids | Small pieces of DNA containing only a few genes |
| Spores | Thick-walled structures which allow bacteria to survive unfavourable conditions |
| Binary fission | Form of asexual reproduction in a bacterial cell |
| Photosynthetic bacteria | Bacteria that make their food using sunlight |
| Chemosynthetic bacteria | Bacteria that make their own food using energy from a chemical reaction |
| Saprophyte | Organisms which get their food from dead organisms |
| Symbiotic organisms | Organisms of one species living in a close relationship with a second species where at least one organism benefits |
| Parasitism | Two organisms of different species living together, where one benefits and causes harm to the other |
| Antibiotics | Chemicals produced by microorganisms that are toxic to bacteria |
| Sterile | Free from all microbes |
| Asepsis | Excluding microbes from as much of the environment as possibe |
| Prokaryotic | Cell with no membrane-bound nucleus or cell organelles |
| Eukaryotic | Cell with a true nucleus and membrane-bound cellular organelles |
| Continuous flow method | Production in which microbes are maintained in the log phase of growth by the addition of fresh medium |
| Batch flow method | Production in which fixed amounts of nutrients are added to a bioreactor which is emptied of its contents at the end of production |
| Mycelium | Mass of hyphae |
| Chitin | Structural polysaccharide found in fungi cell walls |
| Rhizopus | Bread mould |
| Gametangium | Structure that produces gametes in Rhizopus |
| Budding | Form of asexual reproduction in yeast |
| Pseudopodia | False feet found in amoeba used for movement and to engulf prey |
| Contractile vacuole | Structure in amoeba used for osmoregulation |