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Home > Biology > Biotechnology > Problems and profit with waste


Problems and profit with waste


Microorganisms exist naturally all over the human body. This video shows a 2-day experiment in which mobile phones, earrings and other personal possessions were swabbed and the results cultured – to the horror of their owners. Now you know why you should always wash your hands!

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Key points

  • Bacteria are a type of microorganism each made of one cell.
  • There are strict guidelines on safety and good practice when working with microorganisms. Here are some of the key precautions you need to be aware of.


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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