-
a resistant form of the bacterium that is produced within the cell when environmental conditions are unfavorable is called
endospores
-
Cycle of infection 6 parts
- 1- Pathogenic Organism
- 2- Reservoir of Infection
- 3- Portal of Exit
- 4- Means of Transmission
- 5- Portal of Entry
- 6- Susceptible Host
-
Resevior of infection
source of infection
-
______ are living organisms too small to be seen with the naked eye and include bacteria, viruses, protozoa, prions, and fungi.
Microorganisms
-
Some microorganisms benefit and protect humans and are called_____ some are harmful, causing infections and disease, and are called ______.
-
_____ factors are responsible for the behavior and infectious characteristics that distinguish pathogenic organisms from nonpathogenic organisms.
Virulence
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There are six main routes of disease transmission:
- direct contact
- indirect routes
- vectors (insects),
- vehicles (contaminated food, water, and soil),
- droplet contamination,
- airborne means (dust particles containing spores and droplet nuclei).
-
The human body is protected from the invasion of microorganisms in three ways:
- natural resistance and defenses,
- acquired immunity,
- short-term passive immunity
-
_________ occurs when an individual receives preformed antibodies from others to provide temporary immunity.
Passive resistance
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Microorganisms that live on or inside the body without
causing disease are referred to as:
A.pathogens.
B.endospores.
C.microbial flora.
D.parasites.
B.endospores
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3. Microorganisms classified as acid-fast are a type of:
A.virus.
B.bacteria.
C.rickettsiae.
D.protozoa.
B.bacteria.
-
Yeasts are one type of:
A. bacteria.
B. mold.
C. fungus.
D. prion.
C. fungus.
-
Bacterial forms that are resistant to destruction and can
remain viable for many years are called:
A.endospores.
B.Gram-negative. x
C.cocci.
D.facultative organisms.
A.endospores.
-
Tuberculosis, strep throat, and necrotizing fasciitis are
diseases caused by:
A.fungi.
B.prions.
C.protozoa.
D.bacteria.
D.bacteria.
-
7. The term reservoir of infection refers to the:
A. place where the pathogen resides.
B. method by which the pathogen enters the body.
C. method by which the pathogen leaves the body.
D. individual with
reduced natural resistance to infection
A. place where the pathogen resides.
-
The term nosocomial applies to infections that are:
A.caused by viruses.
B.hospital acquired.
C.caused by normal flora in persons weakened by other
diseases.
D.transmitted by
droplet contamination
B.hospital acquired
-
An object that has been contaminated with a pathogenic
organism is called a:
A.vehicle. x
B.fomite.
C.vector.
D.prion.
B.fomite.
-
Particles of evaporated droplets containing microorganisms
and measuring 5 microns or smaller are called:
A. droplet nuclei.
B. droplet contamination.
C. vehicles.
D. fomites. x
B. droplet contamination.
-
. The immunity transferred from mother to child at birth or
via breast milk is classified as:
A.natural resistance.
B.acquired resistance.
C.active immunity.
D.passive immunity.
D.passive immunity.
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