Flashcards in Unit VI Quiz Deck (20):
Types of radiation that can be sporadical
When would you use an oven for microbial control?
to sterilize glassware, powders, or oils
Which antimicrobial agent is the best hope for combating the avian flu virus
What method of handling microbes prevents infection of tissues
What affects how successful disinfection of an object will be?
concentration of agent and time applied
type of microbe present
presence of organic matter
T or F: the presence of blood, saliva, and feces can inhibit an agent from killing a culture of bacteria
____ are beneficial microbes that compete with pathogens for resources
Pathogen A is more resistant to an tetracycline disc on a Kirby-Bauer diffusion susceptibility plate compared to Pathogen B. Pathogen A will have a(n) ___ zone of inhibition compared to Pathogen B.
Electrons are ejected from atoms in cells when organisms are exposed to
gamma and X rays
Heavy metal that is toxic to humans in minute doses
Gas used to clean anthrax from the US Senate offices in 2001.
Kills microbes by producing toxic free radicals
gaseous chemosterilant used in a chemiclave
used to disinfect drains, cesspools, and animal quarters
Antimicrobial agent that inhibits DNA hyrase
The lowest temperature required to kill a suspension of bacteria in 10 minutes
the thermal death point
which is effective against spores
drug resistance is
an adaptive response where the population contains higher numbers of microbes that are not killed by the drug
Which molecule looks like a substrate and sits in the active site of an enzyme