Ecosystem Energy Flow Powerpoint Presentation
- 1. 1 Energy Flow Through an Ecosystem Food Chains, Food Webs, Food Chains, Food Webs, Energy Pyramids Energy Pyramids copyright cmassengale
- 2. 2 •Begins with the Begins with the SUN SUN •Photosynthesis Photosynthesis 6CO2 + 6H2O + sunlight & chlorophyll C6H12O6 + 6O2 copyright cmassengale
- 3. 3 Photosynthesis Photosynthesis •Chemical reaction where green plants Chemical reaction where green plants use use water & carbon dioxide water & carbon dioxide to store the to store the sun’s energy in glucose sun’s energy in glucose •ENERGY is stored in glucose ENERGY is stored in glucose •Glucose is stored as starch in plants Glucose is stored as starch in plants copyright cmassengale
- 4. 4 Organisms that can Organisms that can make glucose during make glucose during photosynthesis are photosynthesis are called called PRODUCERS. copyright cmassengale
- 5. 5 Producers Producers use use most of the most of the energy they make energy they make for themselves. for themselves. copyright cmassengale
- 6. 6 Producers use Producers use cellular respiration cellular respiration to supply the to supply the energy they need energy they need to live. to live. copyright cmassengale
- 7. 7 CELLULAR CELLULAR RESPIRATION RESPIRATION is is the chemical the chemical reaction that reaction that releases the releases the energy in glucose energy in glucose. . 6O2 + C6H12O6 --> 6H2O + 6CO2 + energy copyright cmassengale
- 8. 8 The The energy that is not energy that is not used by producers used by producers can can be passed on to be passed on to organisms that cannot organisms that cannot make their own make their own energy. energy. copyright cmassengale
- 9. 9 Organisms that Organisms that cannot make their cannot make their own energy are called own energy are called CONSUMERS. CONSUMERS. copyright cmassengale
- 10. 10 Consumers that eat producers Consumers that eat producers to get energy: to get energy: •Are first order (1st ) or primary consumers •Are herbivores (plant-eaters) copyright cmassengale
- 11. 11 Most Most of the of the energy the energy the primary consumer primary consumer gets from the gets from the producer is used producer is used by the consumer. by the consumer. copyright cmassengale
- 12. 12 Some Some of the of the energy moves into energy moves into the atmosphere as the atmosphere as heat. heat. copyright cmassengale
- 13. 13 Some energy in the Some energy in the primary consumer is primary consumer is STORED STORED & & not lost not lost to the atmosphere or to the atmosphere or used by the used by the consumer itself. consumer itself. This energy is This energy is available available for another for another consumer consumer (predator). (predator). copyright cmassengale
- 14. 14 A Consumer that Eats Another A Consumer that Eats Another Consumer for Energy: Consumer for Energy: •Is called a secondary or Is called a secondary or 2nd order consumer 2nd order consumer •May be a May be a carnivore carnivore or or a a omnivore omnivore •May be a May be a predator predator •May be a May be a scavenger scavenger copyright cmassengale
- 15. 15 Most Most of the of the energy the energy the secondary secondary consumer gets consumer gets from the primary from the primary consumer is used consumer is used by the secondary by the secondary consumer. consumer. copyright cmassengale
- 16. 16 Some Some of the of the energy is lost as energy is lost as heat heat, but some , but some energy is stored energy is stored and can and can passed passed on to another on to another consumer. consumer. copyright cmassengale
- 17. 17 A consumer that eats a A consumer that eats a consumer that already ate a consumer that already ate a consumer: consumer: •Is called a Is called a 3rd order 3rd order or or tertiary consumer tertiary consumer •May be a May be a carnivore or carnivore or a omnivore a omnivore •May be a May be a predator predator •May be a May be a scavenger scavenger copyright cmassengale
- 18. 18 Consumers that eat producers Consumers that eat producers & other consumers & other consumers Are called Are called omnivores omnivores Omnivores Omnivores eat plants eat plants and and animals animals copyright cmassengale
- 19. 19 Consumers that hunt & Consumers that hunt & kill other consumers are kill other consumers are called called predators. predators. The animals that are The animals that are hunted & killed are hunted & killed are called called prey. prey. copyright cmassengale
- 20. 20 Consumers that eat Consumers that eat other dead consumers other dead consumers are called are called scavengers scavengers copyright cmassengale
- 21. 21 The The transfer of energy transfer of energy from from the the sun sun to to producer producer to primary to primary consumer then to higher order consumer then to higher order consumers consumers can be shown in a can be shown in a FOOD CHAIN. FOOD CHAIN. copyright cmassengale
- 22. 22 Food Chains Show Available Energy Food Chains Show Available Energy copyright cmassengale
- 23. 23 More Food Chains More Food Chains copyright cmassengale
- 24. 24 Another way Another way of showing the of showing the transfer of transfer of energy in an energy in an ecosystem is ecosystem is the the ENERGY ENERGY PYRAMID PYRAMID copyright cmassengale
- 25. 25 Energy Pyramids Show Energy Pyramids Show •Amount of available Amount of available energy energy decreases decreases for for higher consumers higher consumers •Amount of available Amount of available energy energy decreases decreases down the down the food chain food chain •It takes a It takes a large number large number of producers of producers to support a to support a small number of primary small number of primary consumers consumers •It takes a It takes a large number large number of primary consumers of primary consumers to to support a small number of support a small number of secondary consumers secondary consumers copyright cmassengale
- 27. 27 Food Webs: Food Webs: •Are Are interconnected interconnected food chains food chains •They show the They show the feeding feeding relationships in relationships in an ecosystem an ecosystem copyright cmassengale
- 28. 28 How Many Chains are in this web? copyright cmassengale
- 29. 29 Identify the Producers, Consumers, & Identify the Producers, Consumers, & Decomposers: Decomposers: Count the Count the Food Food Chains! Chains! copyright cmassengale