Thursday, 3 January 2013

1.3 recall the term ‘pathogen’ and know that pathogens may be fungi, bacteria, protoctists or viruses.

Pathogens are micro-organisms that cause disease.

Bacteria, fungi, viruses and protoctists all cause disease in a variety of ways.
For example, bacteria release toxins. Another useful example of pathogens causing disease is viruses destroying host cells.

8 comments:

  1. could have done and explained better

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    Replies
    1. Learn the difference between a constructive criticism and pointless hate.

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    2. this is great and helpful information that instead of criticising you could learn something

      Delete
  2. This is extremely helpful thank you very much!!

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  3. The Biology Syllabus has changed.... New Syllabus Blog:

    http://igcse-biology-2017.blogspot.hk

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  4. This comment has been removed by the author.

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  5. Find more at:

    http://igcse-biology-notes.blogspot.hk/2017/06/13-recall-term-pathogen-and-know-that.html

    ReplyDelete