Test
Exam 1
Preguntas del test (33)
1Which of the following have reduced the number of deaths from infectious diseases in the developed world?
- Awater chlorination
- Bvaccination
- Cantibiotics
- Dpublic health agencies
- Eall of the above
2How do infectious diseases differ from non-infectious diseases?
- Ainfectious diseases occur only in the underdeveloped parts of the world
- Binfectious diseases are deadlier than non-infectious diseases
- Cinfectious diseases only occur in certain parts of the world
- Dinfectious diseases involve bacteria, viruses, and parasites
- Eall of the above
3The leading causes of death from infectious diseases in the underdeveloped parts of the world include
- Ahearth disease
- Bdiarrheal diseases
- Ccancer
- Dpolio
- Eall of the above
4Bacterial infections are necessary for normal human development and health
- Atrue
- Bfalse
5Bacteria cause disease by
- Aproducing toxins
- Bdigesting host cells
- Cproducing viruses
- Dreleasing their nuclei
- Eall of the above
6Which of the following is/are necessary for normal human cell functions
- Aoxygen
- Bnutrition
- Celimination of waste products
- Dwater
- Eall of the above
7Bacterial endotoxins
- Aare all different
- Bare secreted by living gram-positive bacteria
- Care parts of the cell walls of gram-negative bacteria
- Drarely cause disease
- Eall of the above are true of exotoxins
8Bacteria are the most abundant living organisms
- Atrue
- Bfalse
9Salmonella bacteria commonly
- Aare commonly transmitted in water or food contaminated with feces
- Bcause disease by digesting host cells
- Cinfect only human beings
- Drarely cause disease
- Enone of the above are true of salmonella
10Bioterrorism, compared to other forms of terrorism, poses a particular threat because
- Aagents of bioterrorism are hard to come by
- Bagents of bioterrorism are hard to comeby
- Cagents of bioterrorism can be transported anywhere in the world
- Dthey are easily produced for little cost
- Eall of the above reasons
11Which of the following are true of microorganisms with a potential for bioterrorism
- Athey kill quickly and horribly
- Bthey are not easily dispersed
- Cthey are highly controlled
- Dthey are infectious but not contagious
- Eall of the above are true of potential bioterrorist agents
12Which of the following makes anthrax ideal for bioterrorism
- Ait is a bacterium
- Bit forms long-lived easily dispersed spores
- Cit is common in cattle
- Dit comes in three forms cutaneous, G.I. and inhalation
- Eall of the above
13Plague is most commonly transmitted by fleas
- Afrom human to human
- Bfrom birds to humans
- Cfrom pigs to humans
- Dfrom rodent to humans
- Efrom soil to humans
14Viral diseases are especially difficult to treat becasue
- Aviral toxins are much like human serum proteins
- Bviruses grow inside of host cells and use host cell organelles for DNA replication and protein sythesis
- Cviruses are so much like human cells that most antiviral agents also destroy human cells
- Dviruses can readily pass through human skin
- Eall of the above
15Viruses may cause disease by
- Arupturing host cell membranes
- Baltering host cell functions
- Cdepleting host cell nutrients
- Dall of the above
- Enone of the above
16The clinical manifestations of viral disease result from
- Athe nature of the virus
- Bthe cells infected by the virus
- Cthe immune status of the host
- Dthe host inflammatory response
- Eall of the above may affect the symptoms of viral diseases
17Viruses may be transmitted by
- Ainhalation
- Binjection
- Csexual intercourse
- Dinsects
- Eall of the above
18Infuenza virus has been referred to as a potential slate wiper because
- Ainfluenza viruses are more numerous than other viruses
- Binfluenza pandemics are worse than all other pandemics
- Chistorical evidence suggests that an influenza pandemic could kill a large portion of the human population
- Dinfluenza pandemics occur rarely
- Einfluenza is not very contagious
19Some influenza viruses can infect humans, pigs, and birds equally
- Atrue
- Bfalse
20Influenza viruses cause disease by
- Aproduction of toxins in the lungs
- Binfection of respiratory epithelial cells and inflammation
- Cattachment to and digestion of respiratory epithelial cells
- Dall of the above
- Enone of the above
21Prions cause disease by
- Adestruction of host cell DNA
- Bconversion of host cell molecules into pathogenic forms of the same molecule
- Cuse of host cell organelles for prion replication
- Dconversion of host neuron into infectious agents
- Econversion of host cell membranes into a form more susceptible to infection
22Prion diseases all share which of the following
- Athey all inflammation
- Bthey all cause a damage animals' brains
- Cthey all involve viruses
- Dthey all involve bacteria
- Eall come from sheep
23Prions cause disease by
- Aaltering the shape of host proteins
- Breplication in host cells
- Cproduction of endotoxins
- Denzymatic digestion of host cells
- Eall of the above
24Funguses cause disease by
- Aalteration of host proteins
- Breplication in host cells
- Cproduction of endotoxins
- Denzymatic digestion of host cells
- Eall of the above
25Ergot alkaloids are examples of mycotoxins, toxins produced by fungi. These toxins cause disease
- Aby inappropriate activation of T cells
- Bwhen contaminated foods are consumed
- Cwhen fungal products interact with bacterial products in the host
- Dwhen fungi die inside a living host
- Eby infection and destruction of host cells
26The most serious fungal infections are
- Asuperficial fungal infections
- Bcutaneous fungal infections
- Csystemic fungal infections
- Dopportunistic fungal infections
- Eringworms
27Parasitic worms may cause disease by
- Ainfecting host cells
- Bdestroying host cells
- Cproduce of toxins
- Dblockage of fluid flow
- Eany of the above
28All of the following are true of malaria, except
- Ait is transmitted by mosquito bites
- Bit is caused by a protozoan parasite
- Cit is caused by a virus
- Dthe parasite infects 1/3 or more of the world's population
- Epeople in equatorial regions of the world are most affected by malaria
29Which of the following characteristics of the innate inflammatory response distinguishes it from the adaptive immune response
- Athe inflammatory response is mediated by lymphocytes
- Bthe inflammatory response is non-specific
- Cthe inflammatory response is dependent on neurons
- Dthe inflammatory response is mediated by erythrocytes
- Ethe inflammatory response is only effective against viruses
30Inflammatory processes are initiated by which mast cell product
- Ainterferon
- Btumor necrosis factor (TNF)
- Cinterleukin 2
- Dglutamine
- Ehistamine
31The major events in inflammation include which of the following
- Avasodilation
- Bincreased vascular permeability
- Crelease of histamine by mast cells
- Dmovement of neutrophils from the blood into the inflamed sites
- Eall of the above
32Antibodies are most effective against intracellular bacteria
- ATrue
- BFalse
33All of the cells involved in defense against infections come from
- Athe thymus
- Bthe lymph nodes
- Cthe spleen
- Dthe lymphatics
- Ethe bone marrow
Información
- Descripción
- Intro To Disease
- Autor
- ella.hickcox88
- Idioma
- English
- Visitas
- 15
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