Energy Flow 3.2<br />
Autotroph<br />Organism that can capture energy from sunlight or chemicals and use it to produce its own food from inorgan...
Producer <br />Organism that can capture energy from sunlight or chemicals and use it to produce food from inorganic compo...
Photosynthesis <br />Process by which plants and some other organisms use light energy to convert water and carbon dioxide...
Chemosynthesis <br />Process by which some organisms, such as certain bacteria, use chemical energy to produce carbonhydra...
Heterotrophs<br />Organism that obtains energy from the foods it consumes; also called a consumer.<br />
Consumers<br />Organism that relies on other organisms for its energy and food supply.<br />
Herbivores<br />Organism that obtains energy by eating only plants. <br />
Carnivores<br />Organism that obtains energy by eating animals.<br />
Omnivores <br />Organism that obtains energy by eating both plants and animals.<br />
Detritivores<br />Organism that feeds on plant and animal remains and other dead matter.<br />
Decomposers<br />Organism that breaks down and obtains energy from dead organic matter.<br />
Food Chain<br />Series of steps in an ecosystem in which organisms transfer energy by eating and being eaten.<br />
Food Web<br />Network of complex interactions formed by the feeding relationships among the various organisms in an ecosys...
Trophic Level<br />Step in a food chain or food web.<br />
Ecological Pyramid<br />Diagram that shows the relative amounts of energy or matter within each trophic level in a food ch...
Biomass <br />Total amount of living tissue within a given trophic level. <br />
Key Concept<br />Where does the energy for life processes come from?<br />Sunlight  is the main energy source for life on ...
Key Concept<br />How does energy flow through living systems? <br />Some types of organisms rely on the energy stored in i...
Key Concept<br />How  efficient is the transfer of energy among organisms in an ecosystem?<br />Energy flows through an ec...
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Biology 3 2

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Biology 3 2

  1. 1. Energy Flow 3.2<br />
  2. 2. Autotroph<br />Organism that can capture energy from sunlight or chemicals and use it to produce its own food from inorganic compounds; also called a producer.<br />
  3. 3. Producer <br />Organism that can capture energy from sunlight or chemicals and use it to produce food from inorganic compounds; also called an autotrophs.<br />
  4. 4. Photosynthesis <br />Process by which plants and some other organisms use light energy to convert water and carbon dioxide into oxygen and high energy carbohydrates such as sugars and starches. <br />
  5. 5. Chemosynthesis <br />Process by which some organisms, such as certain bacteria, use chemical energy to produce carbonhydrates.<br />
  6. 6. Heterotrophs<br />Organism that obtains energy from the foods it consumes; also called a consumer.<br />
  7. 7. Consumers<br />Organism that relies on other organisms for its energy and food supply.<br />
  8. 8. Herbivores<br />Organism that obtains energy by eating only plants. <br />
  9. 9. Carnivores<br />Organism that obtains energy by eating animals.<br />
  10. 10. Omnivores <br />Organism that obtains energy by eating both plants and animals.<br />
  11. 11. Detritivores<br />Organism that feeds on plant and animal remains and other dead matter.<br />
  12. 12. Decomposers<br />Organism that breaks down and obtains energy from dead organic matter.<br />
  13. 13. Food Chain<br />Series of steps in an ecosystem in which organisms transfer energy by eating and being eaten.<br />
  14. 14. Food Web<br />Network of complex interactions formed by the feeding relationships among the various organisms in an ecosystem.<br />
  15. 15. Trophic Level<br />Step in a food chain or food web.<br />
  16. 16. Ecological Pyramid<br />Diagram that shows the relative amounts of energy or matter within each trophic level in a food chain or food web.<br />
  17. 17. Biomass <br />Total amount of living tissue within a given trophic level. <br />
  18. 18. Key Concept<br />Where does the energy for life processes come from?<br />Sunlight is the main energy source for life on Earth.<br />
  19. 19. Key Concept<br />How does energy flow through living systems? <br />Some types of organisms rely on the energy stored in inorganic chemical compounds.<br />
  20. 20. Key Concept<br />How efficient is the transfer of energy among organisms in an ecosystem?<br />Energy flows through an ecosystem in one direction, from the sun or inorganic compounds to autotrophs (producers) and then to various heterotrophs (consumers).<br />

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