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Unit 2- Pt. 2 Energy

This reviews the vocab found in the second half of the Matter and Energy Unit.

TermDefinition
Photosynthesis a process done by producers/autotrophs that produces glucose and oxygen
Chloroplast an organelle only found in plant cells where photosynthesis takes place
Stoma/Stomata the opening on the underside of leaves. It stays open when water is plentiful and then permits oxygen and CO2 to move in and out of the leaf.
Cellular Respiration a process done by ALL organisms to turn glucose and oxygen into the usable energy of ATP
Mitochondria an organelle found in ALL cells where Cellular Respiration takes place and ATP energy is made.
ATP usable energy for a cell made through the process of Cellular Respiration
Food Web a system of interlocking food chains that show the movement of energy as it moves from producers to consumers
Food Chain a chain of single organisms that shows the exchange of energy from producer to consumers
Energy Pyramid a pyramid look at the levels of the food chain that depicts the lower amount of energy and therefore smaller populations as you move your way up the chain.
Producer/Autotroph Organisms that perform photosynthesis...the bottom level of the food chain
Consumer any organism that eats another organism as an energy source (herbivore, carnivore, omnivore)
Herbivore any organism that only eats and gains energy from producers
Carnivore any organism that only eats and gains energy from eating other consumers (meat)
Heterotroph any organism that eats another organism as an energy source
Decomposer (bacteria/fungi) organisms that break down dead material and recycle the nutrients (carbon, nitrogen) back to the soil.
Ecosystem a community of interacting organisms and the physical environment where they live.
Cycling of Materials the idea that nitrogen, carbon and other elements cycle from organism to organism as they move up the food chain, and are returned to the soil by decomposers when an organism dies.
Created by: mbiata@rhnet.org
 

 



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