Chapter 11 Flashcards
What are the three methods to destroy or reduce undesirable microbes?
Physical, Chemical, and Mechanical
What are the highest resistance of microbes?
Prions, bacterial endospores
True or False?
Moderate resistance of microbes consist of Pseudomonas sp., Mycobacterium tuberculosis, Staphylococcus aureus, protozoan cysts.
True
Fill in the blank:
LEAST RESISTANCE
1) most bacterial ______ cells
2) _____ spores and ______, yeasts
3) enveloped __________
4) protozoan _________
1) Vegetative
2) fungal and hyphae
3) viruses
4) trophozoites
Define Sterilization
removal or destruction of all viable microbes
Define Germicide:
also called microbicide; any chemical agent that kills pathogenic microorganism, used on inanimate materials or on living tissue, but cannot kill resistant microbial cells
What term means “destruction of vegetative pathogens on inanimate objects”
Disinfection
What term means “chemicals applied to body surfaces to destroy or inhibit vegetative pathogens”
Antisepsis
Define Sanitization:
cleansing technique that removes microorganism and debris from inanimate surfaces
what does suffix “cide” mean
kill the bacteria
what suffix means to inhibit bacteria’s ability to produce
static
What is microbial death?
permanent loss of reproductive capability, even under optimum growth conditions
what are the 4 modes of action of antimicrobial agents
Cell wall, Cell membrane, Nucleic acid synthesis, Alter protein function
Fill in the blank:
Factors that govern the effectiveness of a particular agent
1) _______ time
2) Concentration the _____
3) _______ of organisms
4) __ of the environment
5) Mode of ______
6) Present of ________ or _______ substances
1) Exposure
2) agent
3) Number
4) PH
5) action
6) solvents or interfering
What are the 5 methods of Physical Agents
1) Heat - moist & dry
2) cold temperatures
3) Desiccation
4) Radiation
5) Filtration
