2.1 Energy Transfer and Food Webs

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Author:
nemothebest
ID:
229440
Filename:
2.1 Energy Transfer and Food Webs
Updated:
2013-08-09 17:57:18
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Biology
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  1. Trophic Level
    a category of living things defined by how it gains its energy; the first tropic level contains autotrophs, and each higher level contains heterotrophs
  2. autotroph
    an organism that uses the Sun's energy and raw materials to make its own food; a producer
  3. primary consumer
    in a food chain or food web, an organism that relies directly on autotrophs for its source of energy; organisms at the second tropic level
  4. secondary consumer
    in a food chain or food web, an organism that relies on primary consumers for its principal source of energy; organisms at the third trophic level
  5. heterotroph
    an organism that is incapable of making its own food, and so must feed on other organisms to gain energy
  6. Photosynthesis
    the process by which green plants and some other organisms use solar energy, carbon dioxide, and water to produce carbohydrates
  7. Cellular Respiration
    the process by which cells break down glucose into carbon dioxide and water, releasing energy
  8. chemosynthesis
    the process by which non-photosynthetic organisms convert inorganic chemicals to organic compounds without solar energy
  9. Chemoautotroph
    an organism that can synthesize organic compounds from inorganic chemicals without using solar energy
  10. food web
    a representation of the feeding relationships among organisms in an ecosystem
  11. thermodynamics
    a scientific study of energy transformations, described by laws

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