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Chapter 5 How ecosystems work. Section1: Energy Flow in Ecosystems Use sunlight in photosynthesis Plants, algae, and some bacteria capture solar energy.

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Presentation on theme: "Chapter 5 How ecosystems work. Section1: Energy Flow in Ecosystems Use sunlight in photosynthesis Plants, algae, and some bacteria capture solar energy."— Presentation transcript:

1 Chapter 5 How ecosystems work

2 Section1: Energy Flow in Ecosystems Use sunlight in photosynthesis Plants, algae, and some bacteria capture solar energy Make carbohydrates (energy + H 2 O + CO 2 ) Used by organism and transferred when eaten Used to move, grow, digest, and reproduce * Life Depends on the Sun

3 Section1: Energy Flow in Ecosystems Producer makes own food = autotrophic Consumer gathers energy from other organisms = heterotrophic * Producers to Consumers

4 Section1: Energy Flow in Ecosystems In a Hydrothermal Vent (opening under ocean floor) No sunlight; no photosynthesis; bottom of ocean Bacteria make food from hydrogen sulfides escaping from mantle Ecosystem built from these autotrophs * Exception to the Rule

5 Section1: Energy Flow in Ecosystems Class Chart * What Eats What?

6 Section1: Energy Flow in Ecosystems Opposite of photosynthesis Breaking down food using Oxygen Excess energy is stored * Cellular Respiration

7 Section1: Energy Flow in Ecosystems Marsh Mallow Lab Why is a pyramid used? What do primary, secondary, and tertiary mean? Why does only 10% transfer? * Energy Transfers


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