Why study Microbiology

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Why study Microbiology
2013-03-23 06:14:21

Intro to microbiology
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  1. What is microbiology?
    Microbes is the study of organisms too small to see with the naked eye. I.e. Microbiology  is the study of microbes.
  2. When do we think microbes first appeared?
    Microbes are believed to have first appeared approximately 3.5 billion years ago.
  3. Where are microbes found?
    Microbes are found nearly everywhere. From the bottom of the ocean, to boiling lava pits, inside thermonuclear reactors, inside other organisms and some have even been known to survive inside a camera lens cap left on the moon for 2 years.
  4. What are the major categories of microbes?
    There are two major divisions of microbes: cellular and acellular. Acellular microbes include viruses, viroids and prions. Cellular microbes are split again into Prokaryotic - including bacteria and archea - and Eukaryotic - including protozoa, fungi, yeast algae and others.
  5. What are pathogens?
    Pathogens are microbes that cause disease, making up around only 3% of all microbes.
  6. What are non-pathogens?
    Non-pathogens are microbes which do not cause disease, they make up the vast, 97% majority of all microbes.
  7. Why study microbiology?
    Microbiology allows us to understand how pathogens can create disease, how indigenous microbes facilitate our functioning, how microbes can influence our environment and how they can be used in industries such as food and beverage production, medicine, pharmaceuticals and other applications.
  8. What are indigenous microflora?
    Indigenous microflora are the microbes whose presence is healthy and normal in humans. They are found on the skin, in the gastrointestinal tract and in orifices of the human body. Indigenous microflora can manufacture certain nutrients, stimulate the immune system, prevent pathogenic microbes from gaining a foothold in our bodies or even just live mind their own business without helping or harming us.
  9. What are opportunistic pathogens?
    Opportunistic pathogens are indigenous microflora that become pathogenic when in certain, atypical areas of the body.
  10. What are saprophytes?
    A saprophyte is an organism that lives on dead or decaying material. They play a crucial role in the earth's ecosystem.
  11. What is an infectious disease?
    An infectious disease is a disease that is the result of a colonisation of a particular microbe in a host organism.
  12. What is microbial intoxication?
    Microbial intoxication is the suffering of disease resulting from the ingestion of a toxin produced by a particular microbe. Eg. Alcohol poisoning is an example of microbial intoxication.