Exam (elaborations)
UTA Microbiology Tholen: Exam 4 Questions With Complete Solutions
- Course
- Microbiology
- Institution
- University Of Texas - Arlington
UTA Microbiology Tholen: Exam 4 Questions With Complete Solutions
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UTA Microbiology Tholen: Exam 4 Questions WithComplete Solutions
A blanket from a child with chickenpox is likely to be
contaminated with the virus that causes chickenpox (Varicella-
zoster virus). What is the blanket called?
a) fomite
b) host
c) pathogen
d) vector Correct Answers d) fomite
A communicable disease that can be easily transmitted from
person to person is which type of disease?
a) contagious
b) iatrogenic
c) acute
d) nosocomial Correct Answers a) contagious
A mosquito bites a person who subsequently develops a fever
and abdominal rash. What type of transmission would this be?
a) mechanical vector transmission
b) biological vector transmission
c) direct contact transmission
d) vehicle transmission Correct Answers b) biological vector
transmission
Cattle are allowed to pasture in a field that contains the
farmhouse well, and the farmer's family becomes ill with a
gastrointestinal pathogen after drinking the water. What type of
transmission of infectious agents would this be?
a) biological vector transmission
, b) direct contact transmission
c) indirect contact transmission
d) vehicle transmission Correct Answers d) vehicle
transmission
During an oral surgery, the surgeon nicked the patient's gum
with a sharp instrument. This allowed Streptococcus, a
bacterium normally present in the mouth, to gain access to the
blood. As a result, the patient developed bacterial endocarditis
(an infection of the heart). Which type of disease is this?
a) iatrogenic
b) nosocomial
c) vectors
d) zoonotic Correct Answers a) iatrogenic
Pathogen A has an ID50 of 50 particles, pathogen B has an ID50
of 1,000 particles, and pathogen C has an ID50 of 1 × 106
particles. Which pathogen is most virulent?
a) pathogen A
b) pathogen B
c) pathogen C Correct Answers a) pathogen A
Phospholipases are enzymes that do which of the following?
a) degrade antibodies
b) promote pathogen spread through connective tissue.
c) degrade nucleic acid to promote spread of pathogen
d) degrade cell membranes to allow pathogens to escape
phagosomes Correct Answers d) degrade cell membranes to
allow pathogens to escape phagosomes
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