LESSON 1: NORMAL HUMAN MICROBIOTA (Part 1)

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11 Terms

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False

All microorganisms are harmful.

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Yeast Bacteria

For bread

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lactobacillus

Good bacteria for digestion

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Resident

  • Permanent

  • Fixed

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Transient

  • Temporary

  • Non-pathogenic or potentially pathogenic

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Symbiosis

2 organism are together

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Commensalism

  • One organism benefits, and the other is unaffected

  • Chill lang yung isa

  • Ex: Staphylococcus epidermis bacteria on the skin

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Mutualism

  • Both organisms benefit

  • Both happy

  • Ex: E. coli bacteria (red) in the large intestine

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Parasitism

  • One organism benefits at the expense of the other

  • Patay isa

  • Ex: Influenza viruses (orange) on a host cell (green)

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BENEFITS DERIVED FROM NORMAL MICROBIOTA

  1. First line of defense against microbial pathogens
    Example: Microbial antagonism or competitive exclusion

  2. Assist in digestion, play a role in toxin degradation

  3. Contribute to maturation of the immune system.

On the other hand, the host provides an environment that support microbial growth.

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Mnemonics

  • D- Defense laban sa pathogens

  • D- detox/digestion

  • I- immune system training