Biology Revision - Energy And Biomass In Food Chain

15 Questions  I  By Izzy_
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Biomass Quizzes & Trivia
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  • 1. 
    Every time you move up a stage (trophic level) in a food chain there is...
    • A. 

      More energy

    • B. 

      Less energy

    • C. 

      More biomass

    • D. 

      Less biomass


  • 2. 
    There is usually a fewer _________ of organisms as you move up a trophic level as well eg - 100 dandelions ... feed ... 10 rabbits ...which feed... 1 fox

  • 3. 
    However this is not always true as 100 dandelions ... feed ... 10 rabbits ...which feed... 1 fox ... which could feed... 500 fleas therefore its often better to look at ___________ rather than numbers of organisms.

  • 4. 
    Each bar on a pyramid of biomass = how much each level would 'weigh' if you put all the animals together. So the fox would have a much ______ biomass than the fleas 

  • 5. 
    Food chains -  Plant - primary ________

  • 6. 
    Food chains -  Plant - primary producer _________ - primary consumer

  • 7. 
    Food chains -  Plant - primary producer Herbivore - primary consumer _______ - secondary consumer

  • 8. 
    Food chains -  Plant - primary producer Herbivore - primary consumer Carnivore - secondary consumer Carnivore - _________ consumer

  • 9. 
    Food chains -  Plant - primary producer Herbivore - primary consumer Carnivore - secondary consumer Carnivore - tertiary consumer ___ carnivore - quaternary consumer

  • 10. 
    Wet mass = 
    • A. 

      Total mass when wet

    • B. 

      Total mass including water

    • C. 

      Total mass after rain

    • D. 

      Mass of water in organism


  • 11. 
    Dry mass = 
    • A. 

      Mass after rain

    • B. 

      Mass when normal - not wet

    • C. 

      Total mass exluding water


  • 12. 
    Respiration is the breakdown of _________ to release energy

  • 13. 
    Energy losses are mainly due to... _____ products - faeces and urine - not all food is digested and absorbed, some is lost in waste

  • 14. 
    Energy losses are mainly due to... waste products - faeces and urine - not all food is digested and absorbed, some is lost in waste _____ production - in warm blooded animals - produced by respiration

  • 15. 
    Energy losses are mainly due to... waste products - faeces and urine - not all food is digested and absorbed, some is lost in waste heat production - in warm blooded animals - produced by energy from respiration m________ in animals - requires energy from respiration

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