B1.5 - Energy and Biomass in food chains

Radiation from the sun is an energy source for all living organisms
Photosynthesis
1. In green plants and algae, photosynthesis captures a fraction of the energy that reaches them.
  1. This energy is stored in the cell of the plant.
    1. The energy is passed onto the organism that eats the plant
Energy Loss
1. Energy is lost at each stage of the food chain due to:
  1. Faeces
    1. Energy released by respiration is used up in movement as heat energy
Pyramids of Biomass
1. Biomass: The mass of living material
Tertiary Consumer
1. Only gets a small fraction of the energy left because some energy is caught by the sun by producers, most biomass stays in the roots, only a tenth of the energy is passed on due to running, mating, excreting and generating heat & they only recieve a bit of the energy from the bottom of the pyramid
Producer
1. Provides food for primary consumer who passes on the energy to the secondary consumer who passes on the energy to the tertiary consumer

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	Erstellt von dramaqueen72 vor fast 11 Jahre