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UF MCB 3020 Exam 4 Questions with Complete Solutions £9.92   Add to cart

Exam (elaborations)

UF MCB 3020 Exam 4 Questions with Complete Solutions

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  • Module
  • MCB 3020
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  • MCB 3020

Which of the following can be examined with an ordinary bright-field microscope? Wet mounts Heat-fixed specimens Chemical-fixed specimens All of the choices are correct. - Answer-All of the choices are correct. The most common method used by clinical microbiology labs for identifying bacteri...

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  • October 9, 2024
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  • Exam (elaborations)
  • Questions & answers
  • MCB 3020
  • MCB 3020
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UF MCB 3020 Exam 4 Questions with
Complete Solutions
Which of the following can be examined with an ordinary bright-field microscope?
Wet mounts
Heat-fixed specimens
Chemical-fixed specimens
All of the choices are correct. - Answer-All of the choices are correct.

The most common method used by clinical microbiology labs for identifying bacteria are
_________. - Answer-biochemical

Which of the following tests can be used to distinguish Escherichia from Enterobacter? -
Answer-IMViC

Chlorination of water supplies represents an epidemiological technique directed at
________. - Answer-eliminating sources of infection

Standard microbiological practices include all of the following EXCEPT _________.
hair longer than shoulder length should be tied back

work space should be disinfected only when contaminating spills occur

eating, drinking, manipulation of contact lenses, and the use of cosmetics, gum, and
tobacco products are strictly prohibited in the lab

lab personnel should know how to use the emergency eyewash and shower stations -
Answer-work space should be disinfected only when contaminating spills occur

The most common types of healthcare-associated infections are _________. - Answer-
urinary tract infections

The ______ rate refers to the total number of individuals infected at any one time
regardless of when the disease began. - Answer-prevalence

_______ are the leading cause of healthcare-associated diseases. - Answer-Bacteria

The ______ rate is the relationship of the number of deaths from a given disease to the
total number of cases of the disease. - Answer-mortality

A(n) _______ is an increase in disease occurrence within a large population over a very
wide region (usually the world). - Answer-pandemic

, Chlorination alone will usually suffice to inactivate viruses present in drinking water. T/F
- Answer-False

Which of the following represents ways in which canned foods may undergo spoilage?

All of the choices are correct.

As a result of under-processing during canning

Leakage of contaminated water through can seams during cooling

Spoilage before canning - Answer-All of the choices are correct.

Which of the following represents a different principle for food preservation? - Answer-
Heating

Penicillin is produced by some _________. - Answer-fungi

Indicator organisms are added to drinking water to test whether the purification process
is being carried out effectively. T/F - Answer-False

Potable water is unfit for consumption or recreation because of the high levels of
microbial contaminants present. T/F - Answer-False

Pasteurization of milk _________. - Answer-usually eliminates all disease-causing
organisms

All of the following are responsible for food safety EXCEPT _______. - Answer-There
are no exceptions here. All parties listed are responsible.

Water reuse is the purification of wastewater so that it can serve as drinking water. T/F -
Answer-True

What did Fredrick Griffith do? - Answer-Described bacterial transformation

What did Louis Pasteur do? - Answer-disproved spontaneous generation

What did Edward Jenner do? - Answer-discovered vaccine for smallpox

What did John Snow do? - Answer-Determined the source of a cholera outbreak

A microbe is discovered living in an extreme environment near a deep sea vent. The
microorganism lacks a nucleus and peptidoglycan in its cell wall, but it does have
unusual membrane lipids. This species is most likely a member of the Domain
_________ - Answer-Archaea

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