BIOD 171 Module 2 Exam with accurate and
verified questions covering the structure and
function of cells, cellular transport, metabolism,
and an introduction to tissues and organ systems
in human biology.
Cryptosporidiosis is caused by _______ - .....ANSWER
...✔✔ the protozoan Cryptosporidium, spread via the
fecal oral route (contaminated water)
Which mode of transmission best describes the spread
of Cryptosporidium from reservoir to host? - .....ANSWER
...✔✔ Vehicle transmission via water.
Which of the following examples would best fall under
the science of epidemiology?
Determining what factors lead to the fastest
Cryptosporidium growth rate.
Determining the best treatment for an individual infected
with Cryptosporidium.
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Determining what factors lead to oocyte formation by
intestinal Cryptosporidium
.Determining what water source in the county is
contaminated with Cryptosporidium oocytes -
.....ANSWER ...✔✔ Determining what water source in
the county is contaminated with Cryptosporidium oocytes
If your county reported 89 cases of cryptosporidiosis
last year and there were 769,000 people living in your
county, what was the annual incidence rate of
cryptosporidiosis in your county? - .....ANSWER ...✔✔
11.6
Incidence=number of cases/ total population x 100,000
What type of nosocomial infection is likely to arise from
intravenous catheterizations? - .....ANSWER ...✔✔
Bacteremia
How might a patient who is not being treated with an
antibiotic still be exposed to an antibiotic? - .....ANSWER
...✔✔ Antibiotics can be used in aerosols, thereby
entering the environment.
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Why are invasive procedures likely to increase the risk
of nosocomial infections? - .....ANSWER ...✔✔ These
procedures allow microbes from the skin to enter the
bloodstream of the patient.
How can health care workers reduce the occurrence of
nosocomial infections? - .....ANSWER ...✔✔ Practice
more stringent aseptic techniques
Which of the following would be considered a fomite?
an infected toy
a tick
a fly
contaminated water - .....ANSWER ...✔✔ an infected
toy
Which of the following would be considered a vector?
Water containing bacteria from fecal matter
A fly carrying disease from fecal matter to food
Water droplets that come from a sneeze from an
infected individual
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Saliva that is transmitted between individuals during
kissing - .....ANSWER ...✔✔ A fly carrying disease
from fecal matter to food
When aerosols containing pathogens spread disease
from a distance of less than one meter, it is considered -
.....ANSWER ...✔✔ contact transmission
Which of the following is considered a major category
of transmission of disease? - .....ANSWER ...✔✔
Contact, vehicle, and vector transmission
Which is an example of vehicle disease transmission? -
.....ANSWER ...✔✔ The presence of Listeria on
undercooked chicken served for dinner
the study of the cause of a disease. - .....ANSWER
...✔✔ etiology
disease directly caused by microorganisms and not by
other means, for example, genetic or degenerative
diseases. - .....ANSWER ...✔✔ infectious disease