5.7- Energy Flow

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.…