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21 Cards in this Set
- Front
- Back
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Aerobic |
relating to, involving, or requiring free oxygen. |
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Anaerobic |
living without air. |
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Aututroph |
an organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide |
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Biomass |
the total mass of organisms in a given area or volume. |
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Carbon Fixation |
he conversion process of inorganic carbon (carbondioxide) to organic compounds by living organisms. |
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Carnivore |
an animal that feeds on flesh. |
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Cellular Respiration |
a set of metabolic reactions and processes that take place in the cells of organisms to convert biochemical energy from nutrients into adenosine triphosphate (ATP), and then release waste products. |
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Chlorophyll |
a green pigment, present in all green plants and in cyanobacteria, responsible for the absorption of light to provide energy for photosynthesis. |
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Consumer |
a person who purchases goods and services for personal use. |
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Decomposer |
an organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material. |
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Detritivore |
an animal that feeds on dead organic material, especially plant detritus. |
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Electron Transport Chain |
a series of compounds that transfer electrons from electrondonors to electron acceptors via redox (both reduction and oxidation occurring simultaneously) reactions, and couples this electron transfer with the transfer of protons (H+ ions) across a membrane. |
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Energy Pyramid |
a graphical model of energyflow in a community. |
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Fermentation |
the chemical breakdown of a substance by bacteria, yeasts, or other microorganisms, typically involving effervescence and the giving off of heat. |
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Herbivore |
an animal that feeds on plants. |
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Heterotroph |
an organism deriving its nutritional requirements from complex organic substances. |
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Nitrogen Fixation |
the chemical processes by which atmospheric nitrogen is assimilated into organic compounds, especially by certain microorganisms as part of the nitrogen cycle. |
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Omnivore |
a kind of animal that eats either other animals or plants. |
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Photosynthesis |
the process by which plants, some bacteria, and some protistans use the energy from sunlight to produce sugar, which cellular respiration converts into ATP, the "fuel" used by all living things. |
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Producer |
a person, company, or country that makes, grows, or supplies goods or commodities for sale. |
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Trophic Level |
each of several hierarchical levels in an ecosystem, comprising organisms that share the same function in the food chain and the same nutritional relationship to the primary sources of energy. |
