5.7- Energy Flow

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  • Created by: Rebecca
  • Created on: 21-06-11 22:44

Energy Flow Through Producers:

  • About 10% of the energy is lost at each trophic level of the food chain
  • The amount of energy available (originally as electromagnetic waves from the sun) limits the length of the food chain.
  • Photosynthetic efficiency indicates the ability of a plant to trap light energy. This is normally less than 10% and depends on external factors such as light intensity and temperature.
  • Gross primary productivity (GPP) is the rate at which products, such as glucose, are formed. GPP minus respiration equals net production.


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