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chapter 20 bw
Question | Answer |
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bacilla | bacteria that have a rod shape |
cocci | bacteria growing on a solid culture medium that have arisen from the multiplication of a single bacterium |
contagious | capable of being transmitted directly or indirectly from one person to another |
culture | the propagation of a mass of microorganisms in a laboratory culture medium |
culture medium | a mixture of nutrients on which microorganisms are grown in a laboratory |
false negative | a test result denoting that a condition is absent when it is actually present |
false positive | a test result denoting that a condition is present when it is actually absent |
fastidious | extremely delicate difficult to culture and involving specialized growth requirements |
immunization | the process of becoming protected from a disease through vaccination |
incubate | in microbiology the act of placing a culture in a chamber that provides optimal growth requirements for the multiplication of the organisms such as the proper temperature humidity and darkness |
incubation period | the interval of time between the invasion by a pathogenic microorganism and the appearance of first symptoms of the disease |
infectious disease | a disease caused by a pathogen that produces harmful effects on its host |
inoculate | to introduce microorganisms into a culture medium for growth and multiplication |
microbiology | the scientific study of microorganisms and their activities |
mucous membrane | a membrane lining body passages r cavities that open to the outside |
normal flora | harmless non pathogenic microorganisms that normally reside in many parts if the body but do not cause disease |
resistance | the natural ability of an organism to remain unaffected by harmful substances in its environment |
sequela | a morbid condition occurring as a result of a less serious primary infection |
smear | material spread on a slide for microscope examination |
specimen | a small sample of part taken from the body to show the nature of the whole |
spirilla | bacteria that have a spiral or curved shape |
streaking | streaking is accomplished by skimming a wire inoculation loop that contains the specimen across the surface of the medium using back and forth motion |
streptolysin | an ex toxin produced by beta- hemolytic streptococci, which completely hemolyzes red blood cells |
susceptible | easily affected lacking resistance |
colony | a mass of bacteria growing on a solid culture medium that have arisen from the multiplication of a single bacterium |