main processes

Cards (10)

  • photosynthesis
    light
    6CO2 + 6H2O —> C6.H12.O6 + 6O2
    chlorophyll
  • photosynthesis (word)
    carbon dioxide + water —> glucose + oxygen
    1. feeding
    • animals eat plants and other animals
    • carbon is built up into organic compounds
    • transferred up food chain
  • 2. respiration
    • they respire and release carbon compounds back into atmosphere
  • 3a excretion
    removal of waste products that have been produced by body or toxic material from environment
    removal of cO2 + water —> respiration
  • 3b egestion
    removal of food that has not been digested or absorbed e.g fibre
  • 4. decomposition
    • carbon compound in dead plants and animals and in faeces from egestion (3b) are broken down by simpler products.
    • decomposes respirate (release CO2)
  • 5. fossilisation
    -environment conditions are not favourable for decomposition (waterlogged or anaerobic) organisms do not decay
    -preserved large quantities (peat in bog) change to fossils to produce fossil fuels
  • 6. combustion
    coal, oil and gas burned and return to atmosphere as CO2 (carbon)
  • carbon cycle
    1.. feeding
    2. respiration
    3. excretion and egestion
    4. decomposition
    5. fossilisation
    6. combustion