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Bonewit Chapter 20

Medical Microbiology

Bacteria that have a rod shape. BACILLI (SING. BACILLUS)
Bacteria that have a round shape. COCCI (SING. COCCUS)
A mass of bacteria growing on a solid culture medium that have arisen from the multiplication of a single bacterium. COLONY
Capable of being transmitted directly or indirectly from one person to another. CONTAGIOUS
The propagation of a mass of microorganisms in a laboratory culture medium. CULTURE
A mixture of nutrients on which microorganisms are grown in the laboratory. CULTURE MEDIUM
A test result denoting that a condition is absent when it is actually present. FALSE NEGATIVE
A test result denoting that a condition is present when it is actually absent. FALSE POSITIVE
Extremely delicate, difficult to culture, and involving specialized growth requirements. FASTIDIOUS
The process of becoming protected from a disease through vaccination. IMMUNIZATION
In microbiology, the act of placing a culture in a chamber (incubator) that provides optimal growth requirements for the multiplication of the organisms, such as the proper temperature, humidity, and darkness. INCUBATE
The interval of time between the invasion by a pathogenic microorganism and the appearance of first symptons of the disease. INCUBATION PERIOD
A disease caused by a pathogen that produces harmful effects on its host. INFECTIOUS DISEASE
To introduce microorganisms into a culture medium for growth and multiplication. INOCULATE
The scientific study of microorganisms and their activities. MICROBIOLOGY
A membrane lining body passages or cavities that open to the outside. MUCOUS MEMBRANE
Harmless, nonpathogenic microorganisms that normally reside in many parts of the body but do not cause disease. NORMAL FLORA
The natural ability of an organism to remain unaffected by harmful substances in its environment. RESISTANCE
A morbid (secondary) condition occurring as a result of a less serious primary infection. SEQUELA
Material spread on a slide for microscope examination. SMEAR
A small sample or part taken from the body to show the nature of the whole. SPECIMEN
Bacteria that have a spiral or curved shape. SPIRILLA (SING. SPIRILLUM)
In microbiology, the process of inoculating a culture to provide for the growth of colonies on the surface of a solid medium. Streaking is accomplished by skimming a wire inoculating loop that contains the specimen across the surface of the medium, using STREAKING
An exotoxin produced by beta-hemolytic streptococci, which completely hemolyzes red blood cells. STREPTOLYSIN
Easily affected, lacking resistance. SUSCEPTIBLE
Created by: Mrs.Marshall