Intro to Micro Flashcards

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1
Q

microbiology

A

study of biological organisms too small to be seen with the naked eye

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2
Q

bacteriology

A

study of single cell organisms

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3
Q

what is the kingdom studied in bacteriology?

A

kingdom monera

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4
Q

name the 4 basic bacterial shapes

A

coccus
bacilli
spiral
spirochete

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5
Q

mycology

A

study of simple plants known as fungi and yeast

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6
Q

what is the kingdom studied in mycology?

A

kingdom fungi

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7
Q

name the 2 fungal shapes

A

yeast
mold

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8
Q

virology

A

study of viruses and prions

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9
Q

name the 4 viral shapes

A

helical
polyhedral
spherical
complex

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10
Q

parasitology

A

study of simple and complex animals

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11
Q

what are the 2 kingdoms within parasitology?

A
  • kingdom protista: protozoa
  • kingdom animalia: helminths (worms)
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12
Q

what are the 2 phylum of helminths?

A
  • nemahelminthes (round)
  • platyhelminthes (flat)
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13
Q

trichomonas (vaginalis) and giardia are examples of ____

A

protozoa

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14
Q

tapeworms and roundworms are examples of ____

A

helminths

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15
Q

normal flora (microbiome)

A

any microbe that lives within or on the human body without causing harm to the host

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16
Q

opportunistic pathogens

A

any potentially infectious microbe considered as host’s normal flora that may cause disease if host’s resistance is low, or innate defenses have been breached

17
Q

pathogen

A

any microbe that causes an infection or illness

18
Q

pathogenesis

A

sequence of steps required resulting in manifestation of disease

19
Q

epidemiology

A

study of factors determining frequency and distribution of disease

20
Q

name the 5 requirements of infection

A
  • entry
  • establishment
  • defeat host defenses
  • damage the host
  • transmission to new host
    (repeat)
21
Q

name 5 transmission mechanisms

A
  • air
  • food/water
  • insect vectors
  • person to person contact
  • geographic distribution
22
Q

name 5 propagation of epidemic disease factors

A
  • poor socioeconomic conditions
  • ignorance of how infections occur
  • poor hygiene
  • natural disasters
  • war & relocation of refugees
23
Q

virulence

A

potential of a pathogen to cause disease

24
Q

virulence factors allow a pathogen to…

A
  • persist in the host
  • cause disease
  • escape or defeat host defenses
25
Q

what are the 2 types of host defenses?

A
  • innate immune response
  • adaptive immune response
26
Q

innate immune response

A
  • first line of defense
  • non-specific
  • cellular & chemical factors
27
Q

adaptive immune response

A
  • lethal response
  • specific response
  • memory
28
Q

what is the easiest type of infection to treat?

A

bacterial

29
Q

prevention of bacterial infections

A

antiseptics and disinfectants

30
Q

treatment of bacterial infections

A

antibiotics

31
Q

why are fungal infections more difficult to treat?

A

fungi share common cell structures with human cells (ie. have a nucleus)

32
Q

treatment of fungal infections

A

antimycotics (antibiotics specific to fungi)

33
Q

treatment of viral infections

A

no treatment:
- virus must be destroyed before entering cell; or
- host cell must be killed prior to releasing replicated viruses

34
Q

treatment for protozoa

A

can cause severe human illness as protozoa are simple animals and thus share many cellular components

35
Q

treatment for helminths

A

can cause severe human illness as helminths are more complex animals and thus share many cellular components

36
Q

what is the best treatment of infectious disease?

A

prevention: public health & immunization

37
Q

name 5 public health measures

A
  • disinfection of water supplies
  • monitoring of food supplies
  • proper hygiene & sanitation
  • proper waste removal & treatment
  • insect & pest control
38
Q

benefits of microbes

A
  • recycle vital elements in soil
  • convert environmental elements into usable form
  • return CO2 to atmosphere
  • recycle waste water
  • decontaminate toxic spills
  • production of chemicals, hormones, enzymes
  • food production