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Exam (elaborations)

MCB 3020 Exam 3 Questions And Answers

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  • Course
  • MCB 3020
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  • MCB 3020

Chlorination of water supplies represents an epidemiological technique directed at ~ eliminating sources of infection. Phagocytosis leads to destruction of engulfed pathogens by which of the following mechanisms? ~ Lysosomal-mediated hydrolysis A disease will be ____________ likely to c...

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  • August 8, 2024
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  • Exam (elaborations)
  • Questions & answers
  • MCB 3020
  • MCB 3020
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MCB 3020 Exam 3 Questions
And Answers

The site or natural environmental location in which the causative organism is

normally found is called the _________.


✓~ reservoir




___________ immunity is an epidemiological concept that explains the

resistance of a population to infection and the spread of an infectious organism

due to the immunity of a high percentage of the population.


✓~ Herd




Substances that are recognized as foreign and provoke immune responses are

called _________.


✓~ antigens




tf Microorganisms do not generally reproduce sexually; therefore, species are

usually defined by phenotypic and genotypic similarities.

, ✓~ true




Lysozyme is an enzyme that lyses _________.


✓~ bacteria




tf Generally, exotoxins tend to be more heat stable than endotoxins.


✓~ false




A __________ epidemic is characterized by a relatively slow and prolonged

rise then a gradual decline in the number of individuals infected.


✓~ propagated




tf The oral cavity of humans normally becomes colonized with microorganisms

within hours after birth.


✓~ true

, The analysis of genetic relatedness by observing the DNA fragmentation

patterns resulting from restriction endonuclease cleavage is referred to as

______.


✓~ genetic fingerprinting




Microbiota of the skin are most likely to be found


✓~ in association with oil and sweat glands.




tf Microbial species are collections of strains that share many stable properties

in common but differ significantly from other strains.


✓~ true




tf The lower genitourinary tract is usually free of microorganisms.


✓~ false




The sudden, unexpected occurrence of a disease in a limited segment of a

population is called a(n) _________.

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