MCIM 321 UPDATED Actual Questions and CORRECT Answers
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Course
MCIM 321
Institution
MCIM 321
MCIM 321 UPDATED Actual Questions
and CORRECT Answers
Thycidides observed: - CORRECT ANSWER- the immune system expresses specific
memory (plague)
What is prophylactic immunization? - CORRECT ANSWER- immunization that can
prevent an infectious disease
Jenner observed: - CORRECT ANSWER- cros...
MCIM 321 UPDATED Actual Questions
and CORRECT Answers
Thycidides observed: - CORRECT ANSWER✔✔- the immune system expresses specific
memory (plague)
What is prophylactic immunization? - CORRECT ANSWER✔✔- immunization that can
prevent an infectious disease
Jenner observed: - CORRECT ANSWER✔✔- cross protection (couldn't have smallpox if
already had cowpox) due to "cross" memory and similar viral antigens
What did Pasteur do? - CORRECT ANSWER✔✔- developed ways of attenuating pathogens
that could be use for vaccinations
Methods of attenuation (2) - CORRECT ANSWER✔✔- 1) culture under non-optimal
conditions
2) passage through other species
How is passive immunity transferred? - CORRECT ANSWER✔✔- through Ab-containing
serum
Humoral immunity deals with - CORRECT ANSWER✔✔- antibodies
Phagocytes are - CORRECT ANSWER✔✔- mobile cells with the ability to take up and
digest foreign matter
What are macrophages? - CORRECT ANSWER✔✔- mediators of natural or innate
resistance
Opsonins - CORRECT ANSWER✔✔- antibodies that specifically enhance phagocytosis
, Postulate of Selective Theory - CORRECT ANSWER✔✔- one cell could bear several
different receptors on its surface ("pre-made jackets in store")
Postulate of Instructive Theory - CORRECT ANSWER✔✔- Antigen required to instruct
immune system to make antibody molecule ("tailor-made jacket")
Why do Japanese waltzing mice "waltz"? - CORRECT ANSWER✔✔- they have an inner
ear defect causing them to have poor balance
Which theory did Ehrlich propose? - CORRECT ANSWER✔✔- selective theory
3 Characteristics of non-immune response - CORRECT ANSWER✔✔- non-inducible
acts quickly
not highly specific
3 Characteristics of immune response - CORRECT ANSWER✔✔- inducible
takes time
highly specific
How is innate immunity achieved? - CORRECT ANSWER✔✔- PRR (pattern recognition
receptors) which bind to structures on foreign invaders but not on host cells
What do the PRR recognize? - CORRECT ANSWER✔✔- PAMPS (pathogen associated
molecular pattern)
2 principle cellular mechanisms of innate resistance - CORRECT ANSWER✔✔-
phagocytosis
lysis by NK cells
The presence of IFN-gamma activates __ - CORRECT ANSWER✔✔- synthesis of reactive
nitric oxide which damages foreign invaders
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