Sunday, October 30, 2011

2.67a Excretion in plants

  • Photosynthesis happens when a leaf absorbs light energy and in this process it combines CO2 with water to form glucose and oxygen which are given off as waste molecules.
  • CO2 + H2O ---> C6H12oO6 + O2 -> Excretion
  • Glucose and Oxygen happen through enzyme reactions, the glucose is broken down and forms ATP.
  • Carbon dioxide is a metabolic waste and is excreted.
  • C6H12oO6 + O2 ---> ATP + H2O + H2O -> Respiration
  • Glucose molecule are broken down and energy is used to form ATP and get the waste of carbon dioxide and water to be given off.
  • This waste process is called Excretion.

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