MICROBIAL GROWTH PHASES II Flashcards

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1
Q

kills bacteria by injuring the cell membrane which results to leakage of cell’s content

A

phenol/phenolic

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1
Q

CHEMICAL METHODS OF MICROBIAL CONTROL

A

phenol/phenolic
alcohols
halogens
heavy metals
aldehydes
peroxygens
surface-active agent
gaseous sterilant
organic acid
biguanides

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2
Q

results in protein denaturation and lipid dissolution

A

alcohols

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3
Q

oxidizing agent

A

halogens

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4
Q

types of halogens:

A

iodine - wound aseptic
chlorine - water disinfection
fluorine - used in toothpaste

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5
Q

used in protein and enzyme denaturation

A

heavy metals

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6
Q

types of heavy metals with meaning

A

copper sulfate
silver nitrate
mercury
thimerosal
zinc oxide nanoparticles

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7
Q

algicide in swimming pool

A

Bordeaux mixture

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8
Q

currently used for neonatal gonorrhea

A

erythromycin

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9
Q

old Merthiolate, new Merthiolate

A

thimerosal, benzalkonium chloride

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10
Q

very effective antimicrobial

A

aldehydes

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11
Q

types of aldehydes

A

formaldehyde
glutaraldehyde

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12
Q

preservative (used in embalming)

A

formaldehyde

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13
Q

less irritating than formaldehyde

A

glutaraldehyde

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14
Q

antiseptic/irrigating agent for deep wound

A

hydrogen peroxide

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15
Q

kills bacteria, algae, plants, snails, fungi

A

copper sulfate

16
Q

types of surface-active agents:

A

soap and base anionic detergents
acid anionic detergents
cationic detergents

17
Q

used to be prophylactic agent for opthalmia

A

silver nitrate

18
Q

used in skin degerming

A

soap and base-anionic detergents

19
Q

sanitizers in dairy and food processing industries

A

acid-anionic detergents

20
Q

antiseptic for skin, instruments, utensils, rubber good

A

cationic detergents

21
Q

quaternary ammonium compound most commonly used antimicrobial preservative.

A

benzalkonium chloride

22
Q

quaternary ammonium salt antiseptic used in mouthwashes, toothpastes, lozenges, breath and nasal sprays.

A

cetylpyridinium chloride

23
Q

for protein denaturation

A

gaseous sterilant

24
Q

has very high penetrating power and denatures microbial proteins

A

ethylene oxide

25
Q

inhibits metabolic reactions

A

organic acids

26
Q

disrupts the plasma membrane

A

biguanides

27
Q

brand of mouthwash/gargle

A

orahex