MCB 100 Exam 3 I-Clickers UPDATED ACTUAL Questions And Correct Answers
C
Terms in this set (59)
Which of the following would make it not possible to The microorganism cannot be isolated in pure culture
satisfy all of Koch's postulates for a particular
microorganism?
A newly discovered bacterial secretion system identified Make a mutation in the secretion system and see if the toxin is still virulent
in E Coli strain, you suspect is important for secreting a
particular protein toxin that is important for virulence.
How can you most directly test this hypothesis?
Which of the following is a sign of disease? Fever
Which of the following is a symptom of disease? dizziness
What steps should a researcher take to establish a cause -Identify the causative pathogen
and effect relationship between a pathogen and a lethal -Obtain the pathogen from the disease outbreak patients
illness?
You suspect that a newly discovered bacterial secretion make a mutation in the secretion system and see if toxin still gets secreted
system identified in
an E. coli strain isolated from a recent outbreak is
important for secreting a
particular protein toxin that is important for virulence.
How would you most
directly test this hypothesis?
What is a zoonosis? A disease that spreads naturally from animals to humans
What is one reason that does not explain why animal Animal immune systems are more evolved to prevent cross species transmission
reservoirs contribute to human diseases more than than human immune systems
human reservoirs?
Which of the following is true of a human disease carrier? Some carriers never become sick
Cold and influenza viruses typically enter the body mouth, nose, and eyes??????
through which route?
Why is the tube emptying the bladder (the urethra) more Urine mechanically flushes invading microbes out of the body.
likely to be a portal of exit than a portal of entry?
Which image below shows a map representative of a C) The one with dots In one country thats very concentrated
disease epidemic
, Which location does not exhibit an epidemic pattern of Middle East
tuberculosis (TB)?
Rate the prevelance of tB in the aresas below from least B) 1,5,2,4,3
to most epidemic... 1)North America 2) South America 3)
Africa 4) Asia 5) Europe
Which of the following reasons does not contribute to Microbes are more pathogenic
elevated prevalence of infectious disease in third world
countries?
Which of the following is not an example of innate antibodies
immunity?
Which of the following is not a way that normal attack and kill pathogenic microbes
microbiota help protect the body from pathogens?
Which statement best describes the environment of the The skin is inhospitable to most microbes but some normal microbiota are present
skin and its effect on microbial growth
How can viruses be more resistant than bacteria to Lysozyme degrades peptidoglycan and viruses do not contain peptidoglycan
lysozyme in tears?
The role of goblet cells in the mucosal layer of the To secrete sticky mucus that traps pathogens
intestine is to __ ?
Which of these statements accurately describes Pathogens are killed in phagolysosomes by acid and oxidative radicals.
phagocytosis?
Which of the following is not a reason a human To absorb ATP from cytoplasm of the pathogen before killing
phagocyte wants to enclose a pathogenic bacterium with
a phagosome?
______ is the process in which pathogens are coated with Opsonization
antimicrobial proteins to increase the likelihood of
phagocytosis.
At what stage of phagocytosis does this movie end at? maturation
____ are protein molecules released by host cells that Interferons
inhibit the spread of viral infections.
At which stage of the virus lifecycle would interferon Entry
AVPs (antiviral proteins) be activated?
Which stage of the virus life cycle do interferon AVPs Synthesis
directly act to prevent?
Which group of bacteria would most likely be killed by Gram negative (kills the pink ones)
the membrane attack complex (MAC)
C
Terms in this set (59)
Which of the following would make it not possible to The microorganism cannot be isolated in pure culture
satisfy all of Koch's postulates for a particular
microorganism?
A newly discovered bacterial secretion system identified Make a mutation in the secretion system and see if the toxin is still virulent
in E Coli strain, you suspect is important for secreting a
particular protein toxin that is important for virulence.
How can you most directly test this hypothesis?
Which of the following is a sign of disease? Fever
Which of the following is a symptom of disease? dizziness
What steps should a researcher take to establish a cause -Identify the causative pathogen
and effect relationship between a pathogen and a lethal -Obtain the pathogen from the disease outbreak patients
illness?
You suspect that a newly discovered bacterial secretion make a mutation in the secretion system and see if toxin still gets secreted
system identified in
an E. coli strain isolated from a recent outbreak is
important for secreting a
particular protein toxin that is important for virulence.
How would you most
directly test this hypothesis?
What is a zoonosis? A disease that spreads naturally from animals to humans
What is one reason that does not explain why animal Animal immune systems are more evolved to prevent cross species transmission
reservoirs contribute to human diseases more than than human immune systems
human reservoirs?
Which of the following is true of a human disease carrier? Some carriers never become sick
Cold and influenza viruses typically enter the body mouth, nose, and eyes??????
through which route?
Why is the tube emptying the bladder (the urethra) more Urine mechanically flushes invading microbes out of the body.
likely to be a portal of exit than a portal of entry?
Which image below shows a map representative of a C) The one with dots In one country thats very concentrated
disease epidemic
, Which location does not exhibit an epidemic pattern of Middle East
tuberculosis (TB)?
Rate the prevelance of tB in the aresas below from least B) 1,5,2,4,3
to most epidemic... 1)North America 2) South America 3)
Africa 4) Asia 5) Europe
Which of the following reasons does not contribute to Microbes are more pathogenic
elevated prevalence of infectious disease in third world
countries?
Which of the following is not an example of innate antibodies
immunity?
Which of the following is not a way that normal attack and kill pathogenic microbes
microbiota help protect the body from pathogens?
Which statement best describes the environment of the The skin is inhospitable to most microbes but some normal microbiota are present
skin and its effect on microbial growth
How can viruses be more resistant than bacteria to Lysozyme degrades peptidoglycan and viruses do not contain peptidoglycan
lysozyme in tears?
The role of goblet cells in the mucosal layer of the To secrete sticky mucus that traps pathogens
intestine is to __ ?
Which of these statements accurately describes Pathogens are killed in phagolysosomes by acid and oxidative radicals.
phagocytosis?
Which of the following is not a reason a human To absorb ATP from cytoplasm of the pathogen before killing
phagocyte wants to enclose a pathogenic bacterium with
a phagosome?
______ is the process in which pathogens are coated with Opsonization
antimicrobial proteins to increase the likelihood of
phagocytosis.
At what stage of phagocytosis does this movie end at? maturation
____ are protein molecules released by host cells that Interferons
inhibit the spread of viral infections.
At which stage of the virus lifecycle would interferon Entry
AVPs (antiviral proteins) be activated?
Which stage of the virus life cycle do interferon AVPs Synthesis
directly act to prevent?
Which group of bacteria would most likely be killed by Gram negative (kills the pink ones)
the membrane attack complex (MAC)
