1. Ecosystem Energy Flow
All energy initially comes from sunlight.

2. Ecosystem Energy Flow
All energy initially comes from sunlight.
Radiant Energy: the type of energy, including
light that travels to Earth from the Sun through
space.

3. Ecosystem Energy Flow
All energy initially comes from sunlight.
Radiant Energy: the type of energy, including
light that travels to Earth from the Sun through
space.
Where does the energy go?

4. Ecosystem Energy Flow
Where does the energy go?

5. Ecosystem Energy Flow
Where does the energy go?
-almost 70% is absorbed by ground, water, and
atmosphere and turned into heat

6. Ecosystem Energy Flow
Where does the energy go?
-almost 70% is absorbed by ground, water, and
atmosphere and turned into heat
-almost 30% is reflected back into space

7. Ecosystem Energy Flow
Where does the energy go?
-almost 70% is absorbed by ground, water, and
atmosphere and turned into heat
-almost 30% is reflected back into space
-0.023% is absorbed by plants in photosynthesis

8. Ecosystem Energy Flow
Photosynthesis: the process in which the Sun's energy is converted into chemical energy

9. Ecosystem Energy Flow
Photosynthesis: the process in which the Sun's energy is converted into chemical energy
Word equation:
carbon dioxide + water light energy sugar + oxygen

10. Ecosystem Energy Flow
Photosynthesis: the process in which the Sun's energy is converted into chemical energy
Word equation:
carbon dioxide + water light energy sugar + oxygen
producer: an organism that uses photosynthesis to
make its own energy-rich food using the Sun's energy

11. Ecosystem Energy Flow
Cell respiration: the process by which sugar is
converted into energy useable by the cell

12. Ecosystem Energy Flow
Cell respiration: the process by which sugar is
converted into energy useable by the cell
-all cells, plant and animal, do cell respiration

13. Ecosystem Energy Flow
Cellular respiration: the process by which sugar is
converted into energy useable by the cell
-all cells, plant and animal, do cell respiration
Word equation:
sugar + oxygen carbon + water + energy
dioxide

14. Ecosystem Energy Flow
Cell respiration and photosynthesis are
complementary processes
-so the atoms
are continually
recycled

15. Ecosystem Energy Flow
Consumer: an organism that obtains its energy by
consuming other organisms, or the products of
other organisms

16. Ecosystem Energy Flow
Types of consumers:
herbivore: eats only plants

17. Ecosystem Energy Flow
Types of consumers:
herbivore: eats only plants
carnivore: eats only animals

18. Ecosystem Energy Flow
Types of consumers:
herbivore: eats only plants
carnivore: eats only animals
omnivore: eats plants and animals

19. Ecosystem Energy Flow
Types of consumers:
herbivore: eats only plants
carnivore: eats only animals
omnivore: eats plants and animals
scavenger: eats dead animals

20. Ecosystem Energy Flow
Types of consumers:
herbivore: eats only plants
carnivore: eats only animals
omnivore: eats plants and animals
scavenger: eats dead animals
decomposer: eats decaying organisms

21. Ecosystem Energy Flow organism dandelion deer wolf human coyote
earthworm
photo-synthesis
cell respiration
producer
consumer
herbivore
omnivore
carnivore
scavenger
decomposer