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Quiz von ella.hickcox88, aktualisiert more than 1 year ago
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Erstellt von ella.hickcox88
vor fast 9 Jahre
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Frage 1
Frage
Which of the following have reduced the number of deaths from infectious diseases in the developed world?
Antworten
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water chlorination
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vaccination
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antibiotics
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public health agencies
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all of the above
Frage 2
Frage
How do infectious diseases differ from non-infectious diseases?
Antworten
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infectious diseases occur only in the underdeveloped parts of the world
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infectious diseases are deadlier than non-infectious diseases
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infectious diseases only occur in certain parts of the world
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infectious diseases involve bacteria, viruses, and parasites
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all of the above
Frage 3
Frage
The leading causes of death from infectious diseases in the underdeveloped parts of the world include
Antworten
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hearth disease
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diarrheal diseases
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cancer
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polio
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all of the above
Frage 4
Frage
Bacterial infections are necessary for normal human development and health
Antworten
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true
-
false
Frage 5
Frage
Bacteria cause disease by
Antworten
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producing toxins
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digesting host cells
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producing viruses
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releasing their nuclei
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all of the above
Frage 6
Frage
Which of the following is/are necessary for normal human cell functions
Antworten
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oxygen
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nutrition
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elimination of waste products
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water
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all of the above
Frage 7
Frage
Bacterial endotoxins
Antworten
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are all different
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are secreted by living gram-positive bacteria
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are parts of the cell walls of gram-negative bacteria
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rarely cause disease
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all of the above are true of exotoxins
Frage 8
Frage
Bacteria are the most abundant living organisms
Antworten
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true
-
false
Frage 9
Frage
Salmonella bacteria commonly
Antworten
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are commonly transmitted in water or food contaminated with feces
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cause disease by digesting host cells
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infect only human beings
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rarely cause disease
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none of the above are true of salmonella
Frage 10
Frage
Bioterrorism, compared to other forms of terrorism, poses a particular threat because
Antworten
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agents of bioterrorism are hard to come by
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agents of bioterrorism are hard to comeby
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agents of bioterrorism can be transported anywhere in the world
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they are easily produced for little cost
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all of the above reasons
Frage 11
Frage
Which of the following are true of microorganisms with a potential for bioterrorism
Antworten
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they kill quickly and horribly
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they are not easily dispersed
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they are highly controlled
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they are infectious but not contagious
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all of the above are true of potential bioterrorist agents
Frage 12
Frage
Which of the following makes anthrax ideal for bioterrorism
Antworten
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it is a bacterium
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it forms long-lived easily dispersed spores
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it is common in cattle
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it comes in three forms cutaneous, G.I. and inhalation
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all of the above
Frage 13
Frage
Plague is most commonly transmitted by fleas
Antworten
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from human to human
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from birds to humans
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from pigs to humans
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from rodent to humans
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from soil to humans
Frage 14
Frage
Viral diseases are especially difficult to treat becasue
Antworten
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viral toxins are much like human serum proteins
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viruses grow inside of host cells and use host cell organelles for DNA replication and protein sythesis
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viruses are so much like human cells that most antiviral agents also destroy human cells
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viruses can readily pass through human skin
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all of the above
Frage 15
Frage
Viruses may cause disease by
Antworten
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rupturing host cell membranes
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altering host cell functions
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depleting host cell nutrients
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all of the above
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none of the above
Frage 16
Frage
The clinical manifestations of viral disease result from
Antworten
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the nature of the virus
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the cells infected by the virus
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the immune status of the host
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the host inflammatory response
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all of the above may affect the symptoms of viral diseases
Frage 17
Frage
Viruses may be transmitted by
Antworten
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inhalation
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injection
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sexual intercourse
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insects
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all of the above
Frage 18
Frage
Infuenza virus has been referred to as a potential slate wiper because
Antworten
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influenza viruses are more numerous than other viruses
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influenza pandemics are worse than all other pandemics
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historical evidence suggests that an influenza pandemic could kill a large portion of the human population
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influenza pandemics occur rarely
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influenza is not very contagious
Frage 19
Frage
Some influenza viruses can infect humans, pigs, and birds equally
Antworten
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true
-
false
Frage 20
Frage
Influenza viruses cause disease by
Antworten
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production of toxins in the lungs
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infection of respiratory epithelial cells and inflammation
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attachment to and digestion of respiratory epithelial cells
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all of the above
-
none of the above
Frage 21
Frage
Prions cause disease by
Antworten
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destruction of host cell DNA
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conversion of host cell molecules into pathogenic forms of the same molecule
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use of host cell organelles for prion replication
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conversion of host neuron into infectious agents
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conversion of host cell membranes into a form more susceptible to infection
Frage 22
Frage
Prion diseases all share which of the following
Antworten
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they all inflammation
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they all cause a damage animals' brains
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they all involve viruses
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they all involve bacteria
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all come from sheep
Frage 23
Frage
Prions cause disease by
Antworten
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altering the shape of host proteins
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replication in host cells
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production of endotoxins
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enzymatic digestion of host cells
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all of the above
Frage 24
Frage
Funguses cause disease by
Antworten
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alteration of host proteins
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replication in host cells
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production of endotoxins
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enzymatic digestion of host cells
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all of the above
Frage 25
Frage
Ergot alkaloids are examples of mycotoxins, toxins produced by fungi. These toxins cause disease
Antworten
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by inappropriate activation of T cells
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when contaminated foods are consumed
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when fungal products interact with bacterial products in the host
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when fungi die inside a living host
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by infection and destruction of host cells
Frage 26
Frage
The most serious fungal infections are
Antworten
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superficial fungal infections
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cutaneous fungal infections
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systemic fungal infections
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opportunistic fungal infections
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ringworms
Frage 27
Frage
Parasitic worms may cause disease by
Antworten
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infecting host cells
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destroying host cells
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produce of toxins
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blockage of fluid flow
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any of the above
Frage 28
Frage
All of the following are true of malaria, except
Antworten
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it is transmitted by mosquito bites
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it is caused by a protozoan parasite
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it is caused by a virus
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the parasite infects 1/3 or more of the world's population
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people in equatorial regions of the world are most affected by malaria
Frage 29
Frage
Which of the following characteristics of the innate inflammatory response distinguishes it from the adaptive immune response
Antworten
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the inflammatory response is mediated by lymphocytes
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the inflammatory response is non-specific
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the inflammatory response is dependent on neurons
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the inflammatory response is mediated by erythrocytes
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the inflammatory response is only effective against viruses
Frage 30
Frage
Inflammatory processes are initiated by which mast cell product
Antworten
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interferon
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tumor necrosis factor (TNF)
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interleukin 2
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glutamine
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histamine
Frage 31
Frage
The major events in inflammation include which of the following
Antworten
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vasodilation
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increased vascular permeability
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release of histamine by mast cells
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movement of neutrophils from the blood into the inflamed sites
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all of the above
Frage 32
Frage
Antibodies are most effective against intracellular bacteria
Antworten
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True
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False
Frage 33
Frage
All of the cells involved in defense against infections come from
Antworten
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the thymus
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the lymph nodes
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the spleen
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the lymphatics
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the bone marrow
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