| Term | Definition |
|---|
| Three Domains | bacteria, archaea, and eukarya |
| decomposer | organisms that consume dead or decaying organisms |
| producer | utilise energy from the sun and nutrients from the abiotic environment |
| nitrogen fixers | process by which nitrogen is taken from its relatively inert molecular form in the atmosphere and converted into nitrogen compounds |
| microbe | an organism that is microscopic |
| producers | organisms that use the Sun for food (they carry on photosynthesis) and they include trees,vines,etc. |
| decomposers | organisms that break down wastes and dead organisms and return raw materials to the environment |
| nitrogen fixers | Importance of Bacteria: bacteria that "fix" nitrogen from the atmosphere into compounds that can be used by plants (producers) to make proteins |
| rhizobium | symbiotic bacterium that lives in nodules on roots of specific legumes and fixes nitrogen gas from the air into a form of nitrogen plants require |
| azobacter | a genus of free-living bacteria that converts atmospheric nitrogen into ammonium, making it available for plant use |
| nitrosomonas | A genus under proteobacteria. These organisms can form nitrite from ammonia in the soil. |
| nitrobacter | a bacteria that transforms nitrite into nitrate |
| dentrification | soil bacteria convert nitrates into nitrogen gas |
| nitrification | the oxidation of ammonium compounds in dead organic material into nitrates and nitrites by soil bacteria (making nitrogen available to plants) |
| viral vectors | a tool commonly used by molecular biologists to deliver genetic material into cells |
| saccharomyces | single-celled yeasts that reproduce asexually by budding |
| photoautotroph | an organism that harnesses light energy to drive the sythesis of organic compounds from carbond dioxide |
| photoheterotroph | an organism that uses light to generate ATP but that must obtain carbon in organic form |
| chemoautotroph | an organism that needs only carbon dioxide as a carbon souce but that obtains energy by oxidizing inorganic substances |
| chemoheterotroph | an organism that must obtain bother energy and carbon by consuming inorganic substances |
Combine with other sets
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