energy flow through an ecosystem
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Energy Flow Through an Ecosystem. Food Chains, Food Webs, Energy Pyramids. Begins with the SUN Photosynthesis. 6CO 2 + 6H 2 O + sunlight & chlorophyll  C6H 12 O 6 + 6O 2. The chemical reaction by which green plants use water and carbon dioxide and light from the sun to make glucose.

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energy flow through an ecosystem

Energy Flow Through an Ecosystem

Food Chains, Food Webs, Energy Pyramids

slide2
Begins with the SUN
  • Photosynthesis

6CO2 + 6H2O + sunlight & chlorophyll C6H12O6 + 6O2

slide3
The chemical reaction by which green plants use water and carbon dioxide and light from the sun to make glucose.
  • ENERGY is stored in glucose; glucose is stored as starch.
an organism is
An organism is …..
  • Any independent living thing
  • Can be as small as a single celled bacteria
  • Or as large as a whale!
producers are
Producers Are-
  • Producers get their food and energy from the sun. (PLANTS)
  • They are AUTOTROPHS
  • They make their food through a process called photosynthesis.
slide11

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

consumers
Consumers
  • Consumers need to eat their food to get energy. (ANIMALS)
types of consumers are
Types of consumers are
  • There are THREE types of Consumers
    • Herbivores
    • Carnivores
    • Omnivores.
  • Its still all about what you eat!
slide20
Stop…Review…Check…Turn to your partner and tell them the meaning of each word. Also give two examples of each.
  • Carnivore:
  • Herbivore:
  • Omnivore:
consumers that eat producers to get energy
Consumers that eat producers to get energy:
  • Are first order or primary consumers
  • Are herbivores (plant-eaters)
slide24
Some energy in the primary consumer is not lost to the atmosphere or used by the consumer itself.This energy is available for another consumer.
a consumer that eats another consumer for energy
A consumer that eats another consumer for energy:
  • Is called a secondary or second order consumer
  • May be a carnivore or a herbivore
  • May be a predator
  • May be a scavenger
slide26

Most of the energy the secondary consumer gets from the primary consumer is used by the secondary consumer.

some of the energy is lost as heat but some energy is stored and can passed on to another consumer

Some of the energy is lost as heat, but some energy is stored and can passed on to another consumer.

a consumer that eats a consumer that already ate a consumer
A consumer that eats a consumer that already ate a consumer:
  • Is called a third order or tertiary consumer
  • May be a carnivore or a herbivore
  • May be a omnivore
  • May be a predator
  • May be a scavenger
slide29
Consumers that hunt & kill other consumers are called predators.The animals that are hunted & killed are called prey.
consumers that eat producers other consumers
Consumers that eat producers & other consumers
  • Are called omnivores
  • Omnivores eat plants and animals
decomposers
Decomposers
  • Decomposers eat dead things and turn them back into dirt, or soil. YUK!
  • Examples:
    • Mushrooms
    • Worms
    • Bugs
slide35

The transfer of energy from sun to producer to primary consumer to secondary consumer to tertiary consumer can be shown in a FOOD CHAIN.

slide37
Stop…Review…Check…Turn to your partner and tell them the meaning of each word. Also give two example of each.
  • Producers:
  • Consumers:
  • Decomposers:
slide38
Bear

Shark

Rabbit

Cherry tree

Mushroom

Human

Tulip (flower)

8. Panther

9. Giraffe

10. Worm

On a sheet of note book paper describe the following animals as either a producer, consumer or decomposer. For the consumers, make sure to include if they are a carnivore, herbivore or omnivore. Please use complete sentences! (Ex: A _____ is a ______.)

answer key
Consumer / Omnivore

Consumer / Carnivore

Consumer / Herbivore

Producer

Decomposer

Consumer / Omnivore

Producer

Consumer / Carnivore

Consumer / Herbivore

Decomposer

Answer Key
energy pyramids show
Energy pyramids show
  • That the 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 consumers
food webs
Food Webs:
  • Are interconnected food chains
  • They show the feeding relationships in an ecosystem
  • EXAMPLE
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