Energy Flow through an Ecosystem Photosynthesis Food Chains

Energy Flow through an Ecosystem Photosynthesis, Food Chains, Food Webs, & Energy Pyramids 1

Organisms that can make glucose during photosynthesis (makes its own food) Producers use most of the energy they make for themselves. . 2

Plants use ______ they receive from the sun & convert it to _______ in a process called ______. 3

6 CO 2 + 6 H 2 O + sunlight & chlorophyll C 6 H 12 O 6 + 6 O 2 4

The energy that is not used by producers can be passed on to organisms that cannot make their own energy. 5

Organisms that cannot make their own energy 6

A consumer that eats producers to get energy is called a (first order) or 7

Most of the energy the primary consumer gets from the producer is used but some energy is stored and can be passed on. 8

A consumer that eats another consumer for energy is called a (second order) or 9

Most of the energy the secondary consumer gets from the primary consumer is used by the secondary consumer. Some energy is stored and can be passed on. 10

A consumer that eats a consumer that already ate a consumer is called a (3 rd order) or 11

Types of Consumers: Organism that cannot make its own food so it consumes plants and animals. Organism that cannot make its own food so it consumes other animals. Organism that breaks down dead plants and animals to recycle nutrients in the environment. Think of examples for each type of consumer! 12

Consumers that eat other dead consumers are called 13

The transfer of energy, in one path, from the sun to producer to primary consumer then to higher order consumers. 14

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Food Chains: 16

A diagram that shows the trophic levels of organisms in a food web. 17

Trophic Levels pass on 10% of energy as you move up. 18

Energy Pyramids Show… • 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 consumers • Energy is transferred up the food pyramid • What happens if one is taken out? 19

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-Complex, interconnected food chains -They show the feeding relationships in an ecosystem - Arrows represent the flow of energy (direction of energy flow) 21

How Many Chains are in this web? 22