midterm 2
Microbiology 509 with Pradhan at Ohio State University - All Campuses
About this deck
By: Katie Lawson
Textbook:
Microbiology: A Human Perspective w/ARIS bind in card
Created: 2009-05-14
Size: 53 flashcards
Views: 156
Textbook:
Microbiology: A Human Perspective w/ARIS bind in cardCreated: 2009-05-14
Size: 53 flashcards
Views: 156
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sterlization
the complete removal of of all microbes
disinfection
removal of vegetative pathogens on non living organisms
antisepsis
removal of vegetative pathogens on living organisms
degerming
mechanical removal of microbes from a specific area of the body
sanitation
reduces the number of microbes
germicide
ability to kill germs
bactericide
ability to kill bacteria
fungicide
ability to kill fungus
bacteriostatic
inhibits the growth of bacteria
bactericidal
ability to kill bacteria
biofilm
bacteria surrounded by a slimy layer thats not killed right away
environmental influences
increasing temp = increasing bacterial activity but decreasing if biofilm is present
decreased bacterial activity is organic material is present
time of exposure
depends on type of microbes and resistance, but more time is better
physiological state of the microbe
better killed if bacteria is actively growing
microbial characteristics
some highly resistant to specific antimicrobial agents
choose based on type of microbe
most resistant microbes to least resistant
(prions in a diff. category)
endospores, acid fast, G-, viruses, G+, enveloped viruses (no cell wall)
phenol
disruption of plasma membrane and denatured enzymes
seldom used as disinfectant and antiseptic
phenolics
disinfectant
disruption of plasma membrane and denatured enzymes
bisphenols
bacteriostatic; kills G+
disruption of plasma membrane
disinfectant
triclosan
biguanides
disruption of plasma membrane
disinfectant and antiseptic
bactericidal to G+ and G-
halogens
iodine- inhibits protein function; antiseptic
chlorine- alters cellular components; disinfectant
can kill endospores but not 100% of the time
bacteriostatic and bacteriocidal
alcohols
protein denaturation and lipid dissolution
disinfectant and antiseptic (degerming)
bacteriocidal and fungicidal
use 70-90% alcohol
isopropanol
aldehydes
protein denaturation
kills endospores
bacteriocidal
sterilization
ethylene oxide
inhibits vital cellular functions
sterilization
cannot expose to heat or metal
plasma sterilization
sterilization
inhibits vital cellular functions
viricide
hydrogen peroxide
supercritical fluids
inhibits cellular functions
sterilization
carbon dioxide
peroxygens
oxidation
disinfectant antiseptic
effective on oxygen sensitive anaerobes
ozone
boiling or flowing steam
protein denaturation
kills vegetative bacterial and fungal pathogens but not endospores
disinfecting
autoclaving
sterilization
bactericidal- kills everything including endospores
protein denaturation
pasteurization
protein denaturation
kills all pathogens and most non pathogens
milk
does not kill all microbes and endospores
bacteriostatic
direct flaming
burning contaminations to ashes
sterilization
incineration
burning to ashes
sterilization
hot air sterilization
oxidation
sterilization at 170 degrees
filtration
separates bacteria from suspending liquid
removes microbes through a screenlike material
sterlization
refrigeration
decreased chemical reactions and possible changes in proteins
bacteriostate
deep freezing
decreased chemical reactions and possible changes in proteins
kills parasites but not bacterial microbes
kills some bacteria but not all
lyophilization
decreased chemical reactions and possible changes in proteins
preservation of microbial cultures
dehydrates bacterial cells
freeze decreases bacterial growth
high pressure
alteration of molecular structure of proteins and carbohydrates
fruit juice
dessication
disruption of metabolism
remove water from microbes
bacteriostatic
osmotic pressure
plasmolysis
loss of water from microbes
ionizing radiation
destruction of DNA
sterilization
nonionizing radiation
damage to DNA
germicidal
nucleocapsid
nucleic acid and capsid
nucleic acid
dna and rna in different shapes
capsid
protein coat of virion structure
capsomere
molecules that make up the capsid of the virion structure
virion structure
single virus particles
envelope lipid of virion sturcture
have lipid on top of capsid, an easy kill
spikes on virion structure
used for host attachment, the outermost layer, surface of the capsid
bacteriophage tails
fibers that are involved in the attachment for viruses
infects only bacteria
productive infection
lysis of the host cell from virulent phage (T4)
latent infefction
infection that is not multiplying and last for a long period of time, remains dormant
temperate phage
attacks by the cell wall by pili and flagella, the T4 attaches to the cell wall
About this deck
By: Katie Lawson
Textbook: Microbiology: A Human Perspective w/ARIS bind in card
Created: 2009-05-14
Size: 53 flashcards
Views: 156
Textbook:
Microbiology: A Human Perspective w/ARIS bind in cardCreated: 2009-05-14
Size: 53 flashcards
Views: 156
About StudyBlue
STUDYBLUE makes things that make you better at school.
Things like online flashcards with photos and audio.
Things like personalized quizzes and friendly reminders about when (and what) to study next.
Think of it as a digital backpack™: access to all of your study materials online and on your phone.
STUDYBLUE exists to make studying efficient and effective for every student, for free. Join us.
“I have used this website for three exams, and I see a huge difference in my test results.”
Naj
Naj