Oral ecology Flashcards

1
Q

What is the human microbiome?

A

The full array of microorganisms (the microbiota) that live on and in humans

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2
Q

What is a microbe?

A

Tiny living organism, such as bacterium, fungus, protozoan or virus

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3
Q

What is a microbiome?

A
  • Collectively all the microbes in the human body; a community of microbes
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4
Q

What is a biofilm?

A

A commnity of microbes that live together on a surface

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5
Q

Microbes are ubiquitous. What does this mean?

A

They are found everywhere

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6
Q

Some microbes are native, what does this mean?

A

They are normally found in the body

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7
Q

Some microbes are introduced. What does this mean?

A

They suddely arrive at a new residence in the body

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8
Q

We can pick up microbes over our life. Give a few examples of when we can pick up microbes?

A
  • When delivered as a baby (mode of delivery)
  • Breast feeding
  • Geographical location
  • Family members
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9
Q

What are the benefits of normal flora? (5 points)

A
  1. Synthesize and excrete vitamins
  2. Prevent colonization by pathogens
  3. May antagonize other bacteria
  4. Stimulate the development of certain tissues
  5. Stimulate the production of cross-reactive antibodies
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10
Q

What is the germ theory of disease: Koch’s Postulates? (4 points)

A
  • The microbe must be present in every case of the disease
  • The microbe must be isolated from the diseased host and grown in pure culture
  • The disease must be reproduces when a pure culture is introduced into a susceptible host
  • The microbe must be recovered from an experimentally infected host
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11
Q

Look over lecture

A

:)

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