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microbiology midterm > labs 1-5 > Flashcards

labs 1-5 Flashcards

1
Q

well characterized microbes NOT known to consistently cause disease

A

Biosafety Level 1

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2
Q

microorganisms which are known to cause human disease

A

Biosafety Level 2

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3
Q

microbes with potential for aerosol transmission

A

Biosafety Level 3

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4
Q

very high risk of illness, high risk of death, treatments not available

A

Biosafety Level 4

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5
Q

liquid medium for microorganisms to grow

A

nutrient broth

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6
Q

solid medium for microorganisms to grow

A

nutrient agar

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7
Q

which favors the growth of one group of microorganisms while inhibiting or preventing the growth of others

A

selective media

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8
Q

a growth medium that will usually contain an indicator chemical that will change color, detecting the presence or absence of a specific type of metabolic activity

A

differential media

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9
Q

a growth medium that will contain a rare or unique ingredient to favor the growth of unusual or difficult to grow microorganisms

A

enrichment media

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10
Q

organisms growing on a solid surface can tell you what kind of information that organisms growing in a liquid can’t provide

A

isolation of colonies, ability to count them

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11
Q

why something may grow on a negative control sector

A

accidentally gets touched by swab, something from the air current landed on it

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12
Q

features or location of a surface that has a low chance of having living microbes on it

A

dry environment, low traffic, extreme high or low temperature, flat surface

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13
Q

why not all microbes grow on nutrient agar

A

might not have the right type of food, may not have the right type of air flow

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14
Q

colony morphology - shapes

A

round, irregular, filamentus, rhizoid, curled

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15
Q

colony morphology - edge features

A

entire, filamentus, undulate, lobate

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16
Q

colony morphology - elevation features

A

flat, raised, convex, umbinate, crateriform

17
Q

disease that occurs occasionally

A

sporadic disease

18
Q

disease that is nearly alway present

A

endemic disease

19
Q

disease that has a sudden or unusually high spike

A

epidemic disease

20
Q

epidemic disease that occurs in many countries or populations at the same time

A

pandemic disease

21
Q

carry the pathogens but do not have the disease

A

passive carrier

22
Q

a person who is capable of transmitting the pathogen during the incubatory period of a particular disease

A

incubatory carrier

23
Q

a person who is capable of transmitting the pathogen during the recovery period

A

convalescent carrier

24
Q

a person who has completely recovered from a disease but continues to harbor the pathogen indefinitely

A

active carrier

25
Q

modes of transmission - direct skin to skin

A

touching skin to skin, handshaking

26
Q

modes of transmission - direct mucous membrane to mucous membrane

A

such as kissing and sex

27
Q

modes of transmission - indirect contact from airborne droplets

A

such as sneezing or coughing

28
Q

modes of transmission - indirect contact from food or water contaminated from fecal material

A

such as food preparer not washing hands after using the restroom

29
Q

modes of transmission - indirect contact from arthropod vectors

A

such as mosquitoes, flies, fleas, lice, ticks, and mites

30
Q

modes of transmission - indirect contact from contaminated fomites

A

unclean toilet seats, not changing gloves between patients - respiratory secretions, blood, urine, feces, from ill individuals

31
Q

modes of transmission - indirect contact from transfusion of contaminated blood

A

not changing needle between patients

32
Q

Eosin Methylene Blue Agar (EMB)

A

selective - favors growth of enteric bacteria, lactose and sucrose are added in, dyes (eosin y & methylene blue) inhibit growth of gram positive bacteria

differential - lactose fermentation and pH change color of colony

favors bacteria from colon

33
Q

Mannitol Salt Agar (MSA)

A

selective - high concentration of NaCl

differential - fermentation of mannitol & lowers pH

favors skin cells

34
Q

Blood Agar

A

enriched - TSA portion and blood

differential - hemolytic abilities

microbiology midterm (1 decks)

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