Monday, 15 April 2013

4.9 describe the stages in the carbon cycle, including respiration, photosynthesis, decomposition and combustion

Respiration is carried out by animals and plants to release energy from glucose, the equation is:
C6H12O6 + 6O2    →    6CO2 + 6H2O . This means carbon is produced.

Photosynthesis is what plants do to create glucose the equation is:
6 CO2 + 12 H2 C6H12O6 + 6 O2 + 6 H2O. This means carbon is used.

Decomposition is happens when an animal dies, it is then eaten by a decomposer which releases the carbon in it back into the atmosphere.

Combustion is burning, if something with carbon is burnt it will release it into the atmosphere, e.g. a tree, fossil fuel.

This is one of many useful diagrams:
frankswebspace

13 comments:

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