Transcript PowerPoint Presentation - THE CARBON CYCLE

THE CARBON CYCLE-part 2
Carbon Cycle
The same carbon atoms are used
over and over on earth.
 They cycle between the earth & the
atmosphere.

How does Carbon get back to the
Atmosphere?
Animals Eat Plants
When organisms eat plants,
they take in the carbon
from the plant.
 Some of it becomes part of
their bodies.
 Some of it will be released
to the atmosphere.

How does Carbon get back to the
Atmosphere?

This process is called “Respiration!”
Equation:
Food + Oxygen  Carbon Dioxide + Water
C6H12O6 + O2 CO2 + H20
How does Carbon get back to the
Atmosphere?

The Goal of
“Respiration” is to
break down glucose
& release energy
for cell processes.
All living organisms need energy, &
all living organisms do
respiration… even plants!!!
Where does Respiration happen in
a cell?

Respiration happens in a structure in
the cell called the mitochondria.
What happens when Plants &
Animals Die?

When plants and animals die, most of
their bodies are decomposed by
decomposers.
What happens when Decomposers
Eat Plants & Animals?

Decomposers also do respiration &
release more carbon atoms (CO2) to
the atmosphere.