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Ecosystem energyflow with qs


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Ecosystem energyflow with qs

  1. 1. 1<br />Energy Flow Through an Ecosystem<br />Food Chains, Food Webs, Energy Pyramids<br />
  2. 2. 2<br /><ul><li>Begins with the SUN
  3. 3. Photosynthesis</li></ul>6CO2 + 6H2O + sunlight & chlorophyll C6H12O6 + 6O2<br />
  4. 4. 3<br />Photosynthesis<br /><ul><li>Chemical reaction where green plants use water & carbon dioxide to store the sun’s energy in glucose
  5. 5. ENERGY is stored in glucose
  6. 6. Glucose is stored as starch in plants</li></li></ul><li>4<br />Organisms that can make glucose during photosynthesis are calledPRODUCERS.<br />
  7. 7. 5<br />Producers use most of the energy they make for themselves.<br />
  8. 8. 6<br />Producers use cellular respiration to supply the energy they need to live.<br />
  9. 9. 7<br />6O2 + C6H12O6 -->  6H2O + 6CO2 + energy <br />CELLULAR RESPIRATION is the chemical reaction that releases the energy in glucose.<br />
  10. 10. The product that plants use from photosynthesis is:<br />8<br />Oxygen<br />Starch<br />Glucose<br />CO2<br />20<br />
  11. 11. What is glucose stored as in plants?<br />9<br />Cellulose<br />Glycogen<br />Fructose<br />Starch<br />20<br />
  12. 12. How is the energy in glucose released?<br />10<br />Photosynthesis<br />ATP<br />Cellular Respiration<br />Fermentation<br />20<br />
  13. 13. What is a waste product of respiration?<br />11<br />Carbon dioxide<br />Oxygen<br />Water<br />Glucose<br />20<br />
  14. 14. 12<br />The energy that is not used by producers can be passed on to organisms that cannot make their own energy.<br />
  15. 15. 13<br />Organisms that cannot make their own energy are called CONSUMERS.<br />
  16. 16. 14<br />Consumers that eat producers to get energy:<br /><ul><li>Are first order (1st) or primary consumers
  17. 17. Are herbivores (plant-eaters)</li></li></ul><li>15<br />Most of the energy the primary consumer gets from the producer is used by the consumer.<br />
  18. 18. 16<br />Some of the energy moves into the atmosphere as heat.<br />
  19. 19. 17<br />Some energy in the primary consumer is STORED& not lost to the atmosphere or used by the consumer itself.This energy is available for another consumer (predator).<br />
  20. 20. 18<br />A Consumer that Eats Another Consumer for Energy:<br /><ul><li>Is called a secondary or 2nd order consumer
  21. 21. May be a carnivore or a omnivore
  22. 22. May be a predator
  23. 23. May be a scavenger</li></li></ul><li>19<br />Most of the energy the secondary consumer gets from the primary consumer is used by the secondary consumer.<br />
  24. 24. 20<br />Someof the energy is lost as heat, but some energy is stored and can passed on to another consumer.<br />
  25. 25. 21<br />A consumer that eats a consumer that already ate a consumer:<br /><ul><li>Is called a 3rd order or tertiary consumer
  26. 26. May be a carnivore or a omnivore
  27. 27. May be a predator
  28. 28. May be a scavenger</li></li></ul><li>22<br />Consumers that eat producers & other consumers<br />Are called omnivores<br />Omnivores eat plants and animals<br />
  29. 29. 23<br />Consumers that hunt & kill other consumers are called predators.The animals that are hunted & killed are called prey.<br />
  30. 30. 24<br />Consumers that eat other dead consumers are called scavengers<br />
  31. 31. 25<br />The transfer of energy from the sun to producer to primary consumer then to higher order consumers can be shown in a FOOD CHAIN.<br />
  32. 32. All primary consumers are herbivores.<br />26<br />True<br />False<br />20<br />
  33. 33. Organisms that can’t produce their own energy are:<br />27<br />Autotrophs<br />Producers<br />Consumers<br />Trophics<br />20<br />
  34. 34. What do scavengers eat?<br />28<br />Plants<br />Insects<br />Plants and Animals<br />Dead Organisms<br />20<br />
  35. 35. Why don’t consumers get all of the energy the producers had?<br />29<br />It would be too much<br />Some is lost as heat<br />They use it for reproduction<br />No energy flow<br />20<br />
  36. 36. 30<br />Food Chains Show Available Energy<br />
  37. 37. 31<br />More Food Chains<br />
  38. 38. 32<br />Another way of showing the transfer of energy in an ecosystem is theENERGY PYRAMID<br />
  39. 39. 33<br />Energy Pyramids Show<br /><ul><li>Amount of available energy decreases for higher consumers
  40. 40. Amount of available energy decreases down the food chain
  41. 41. It takes a large number of producers to support a small number of primary consumers
  42. 42. It takes a large number of primary consumers to support a small number of secondary consumers</li></li></ul><li>34<br />
  43. 43. 35<br />Food Webs:<br /><ul><li>Are interconnected food chains
  44. 44. They show the feeding relationships in an ecosystem</li></li></ul><li>36<br />How Many Chains are in this web?<br />
  45. 45. 37<br />Identify the Producers, Consumers, & Decomposers:<br />Count the Food Chains!<br />
  46. 46. 38<br />What happens to the amount of available energy as you move up a food chain?<br />Increases<br />Decreases<br />Stays the same<br />None of the above<br />20<br />
  47. 47. How much energy is available for 2nd level consumers if producers have 5000 units?<br />39<br />5000<br />500<br />50<br />5<br />20<br />
  48. 48. What is the second level consumer?<br />40<br />Flowers<br />Snail<br />Song bird<br />Hawk<br />20<br />
  49. 49. What is the primary consumer?<br />41<br />Flower<br />Snail<br />Song bird<br />Hawk<br />20<br />
  50. 50. What organism is the autotroph?<br />42<br />Flower<br />Snail<br />Song Bird<br />Hawk<br />20<br />
  51. 51. Which organism is the tertiary consumer?<br />43<br />Flower<br />Snail<br />Song Bird<br />Hawk<br />20<br />
  52. 52. Which organism is a herbivore?<br />44<br />Flower<br />Snail<br />Song Bird<br />Hawk<br />20<br />
  53. 53. 45<br />