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Ecosystem energyflow with qs

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1. The document describes energy flow through ecosystems, including food chains, food webs, and energy pyramids. 2. Energy from the sun is stored by producers like plants through photosynthesis and used to make glucose, which is then stored. Consumers that eat producers or other consumers get energy by consuming them. 3. As energy moves through food chains and webs, most is used at each level but some is lost as heat, with decreasing amounts available at higher levels of consumption like secondary and tertiary consumers. This is illustrated through energy pyramids.

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1Energy Flow Through an EcosystemFood Chains, Food Webs, Energy Pyramids
2Begins with the SUN
Photosynthesis6CO2 + 6H2O + sunlight & chlorophyll C6H12O6 + 6O2
3PhotosynthesisChemical reaction where green plants use water & carbon dioxide to store the sun’s energy in glucose
ENERGY is stored in glucose
Glucose is stored as starch in plants4Organisms that can make glucose during photosynthesis are calledPRODUCERS.
5Producers use most of the energy they make for themselves.
6Producers use cellular respiration to supply the energy they need to live.
76O2 + C6H12O6 -->  6H2O + 6CO2 + energy CELLULAR RESPIRATION is the chemical reaction that releases the energy in glucose.
The product that plants use from photosynthesis is:8OxygenStarchGlucoseCO220
What is glucose stored as in plants?9CelluloseGlycogenFructoseStarch20
How is the energy in glucose released?10PhotosynthesisATPCellular RespirationFermentation20
What is a waste product of respiration?11Carbon dioxideOxygenWaterGlucose20
12The energy that is not used by producers can be passed on to organisms that cannot make their own energy.
13Organisms that cannot make their own energy are called CONSUMERS.
14Consumers that eat producers to get energy:Are first order (1st) or primary consumers
Are herbivores (plant-eaters)15Most of the energy the primary consumer gets from the producer is used by the consumer.
16Some of the energy moves into the atmosphere as heat.
17Some 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).
18A Consumer that Eats Another Consumer for Energy:Is called a secondary or 2nd order consumer
May be a carnivore or a omnivore
May be a predator
May be a scavenger19Most of the energy the secondary consumer gets from the primary consumer is used by the secondary consumer.
20Someof the energy is lost as heat, but some energy is stored and can passed on to another consumer.
21A consumer that eats a consumer that already ate a consumer:Is called a 3rd order or tertiary consumer
May be a carnivore or a omnivore
May be a predator
May be a scavenger22Consumers that eat producers & other consumersAre called omnivoresOmnivores eat plants and animals
23Consumers that hunt & kill other consumers are called predators.The animals that are hunted & killed are called prey.
24Consumers that eat other dead consumers are called scavengers
25The transfer of energy from the sun to producer to primary consumer then to higher order consumers can be shown in a FOOD CHAIN.
All primary consumers are herbivores.26TrueFalse20
Organisms that can’t produce their own energy are:27AutotrophsProducersConsumersTrophics20
What do scavengers eat?28PlantsInsectsPlants and AnimalsDead Organisms20
Why don’t consumers get all of the energy the producers had?29It would be too muchSome is lost as heatThey use it for reproductionNo energy flow20
30Food Chains Show Available Energy
31More Food Chains
32Another way of showing the transfer of energy in an ecosystem is theENERGY PYRAMID
33Energy Pyramids ShowAmount of available energy decreases for higher consumers
Amount of available energy decreases down the food chain
It takes a large number of producers to support a small number of primary consumers
It takes a large number of primary consumers to support a small number of secondary consumers34
35Food Webs:Are interconnected food chains
They show the feeding relationships in an ecosystem36How Many Chains are in this web?
37Identify the Producers, Consumers, & Decomposers:Count the Food Chains!

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Ecosystem energyflow with qs

Editor's Notes

  1. Could be omnivores