The Carbon Cycle
The Carbon Cycle
Science 10 Data Booklet
Shows Three Parts to the cycle
1) Cycling Carbon: The carbon that is moving
through the ecosystem
Science 10 Data Booklet
Shows Three Parts to the cycle
1) Cycling Carbon: The carbon that is moving
through the ecosystem
2) Stored Carbon: The carbon that is not
available
Science 10 Data Booklet
Shows Three Parts to the cycle
1) Cycling Carbon: The carbon that is moving
through the ecosystem
2) Stored Carbon: The carbon that is not
available
3) Carbon exchange: The trade off. How much is
going in and how much is going out of a store
Science 10 Data Booklet
Cycling carbon comes in four pathways
1) Photosynthesis: Plants use carbon dioxide and
water to make sugar and oxygen
CO2 + H2O -> C6H12O6 + O2
Cycling carbon comes in four pathways
1) Photosynthesis: Plants use carbon dioxide and
water to make sugar and oxygen
CO2 + H2O -> C6H12O6 + O2
2) Cellular respiration: Animals and plants
breakdown sugar to make carbon dioxide and
water
C6H12O6 + O2 -> CO2 + H2O
Cycling carbon comes in four pathways
3) Decomposition: Bacteria and fungi break
down organisms into organic matter
Cycling carbon comes in four pathways
3) Decomposition: Bacteria and fungi break
down organisms into organic matter
4) Food Web: Carbon moves between plants
and animals during the food web interaction
(Eg. Carbon from plants moves into deer)
Carbon Exchange
• Carbon Moves in and out of stores at certain
rates:
– The up arrow shows carbon leaving the store.
– The down arrow shows carbon entering a store
Carbon Stores
• Long term storage of carbon. This carbon is
not yet available to the biotic factors in the
ecosystem.