Ce3501

Front 1

An organism, such as a bacterium or protozoan, that obtains its nourishment through the oxidation of inorganic chemical compounds as opposed to photosynthesis

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Chemoautrotoph

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An organism capable of synthesizing its own food from inorganic substances using light as an energy source. Green plants and photosynthetic bacteria are photoautotrophs

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Photoautotrophs

Front 3

organisms which use light for energy, but cannot use carbon dioxide as their sole carbon source. Consequently, they use organic compounds from the environment to satisfy their carbon requirements.

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Photoheterotroph

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an organism requiring organic compounds for its principal source of food

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Heterotroph

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any organism capable of self-nourishment by using inorganic materials as a source of nutrients and using photosynthesis or chemosynthesis as a source of energy, as most plants and certain bacteria and protists

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Autotroph

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an organism which uses an inorganic substrate (usually of mineral origin)

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Lithotrophs

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must ingest organic building blocks that they are incapable of creating on their own. Most derive energy from organic molecules like glucose.

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Chemoheterotrophs

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respiration in which molecular oxygen is consumed and carbon dioxide and water are produced

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Aerobic Respiration

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Respiration in which molecular oxygen is not consumed

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Anaerobic Respiration

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the species that is reduced

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Electron Acceptor

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the species that is oxidized

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Electron Donor

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To oxidize (an ammonia compound) into nitric acid, nitrous acid, or any nitrate or nitrite, especially by the action of nitrobacteria

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Nitrification

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to reduce (nitrates) to nitrites, ammonia, and free nitrogen, as in soil by microorganisms

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Denitrification