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Home > Biology > Biotechnology > Problems and profit with waste


Problems and profit with waste


For your biology exam you should be able to

  • describe the effect untreated sewage has on the environment
  • explain how the right conditions are provided so that sewage is broken down completely
  • explain the importance of precautions when working with micro-organisms in industry or in the laboratory
  • describe the part played by bacteria in decay and recycling of carbon and nitrogen
  • give examples and some advantages of useful products obtained from waste


Sewage Plant

Class Clips

Hold your nose for this video clip about the bacteria that break down sewage


A picture of Mia Cadaver

Tombstone Timeout

Test out your knowledge of biology with Mia Cadaver's biology game - it's serious fun!

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