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WGU D311 Microbiology 2024 study for OA Questions And Answers A+GRADED
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WGU D311 Microbiology 2024 study for OA Questions And Answers A+GRADED
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WGU D311 Microbiology 2024 study forOA Questions And Answers A+GRADED
What is a characteristic of rhizospheres? -
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correct answer...✔✔The rhizosphere is where plants release organic compounds that ca
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n be metabolized by microbes into soil.
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Which environment would contain microbes that are psychrophilic? - correct answer...✔✔
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Glaciers
What is the role of nematodes in soil? - correct answer...✔✔
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They photosynthesize and fix nitrogen.
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Which eukaryote is responsible for producing antibiotics to ward off bacterial competitors?
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- correct answer...✔✔Fungi
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Which symbiotic relationship is an example of mutualism? - correct answer...✔✔
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The relationship between humans and the Escherichia coli colonizing the human gut
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Which type of symbiotic relationship exists between the Escherichia coli (E. coli) that inhab
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it the human gut and the humans who utilize the vitamin K produced by E. coli? -
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7correct answer...✔✔Mutualism
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Which description of resident microbiota is true? - correct answer...✔✔
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Resident microbiota constantly live on the human body.
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Which relationship is exhibited by intestinal Escherichia coli and their human host? -
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correct answer...✔✔Mutualism
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Which type of disease is transmitted from animals to humans? - correct answer...✔✔
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Zoonotic diseases 7
Which type of disease is acquired in hospital settings? - correct answer...✔✔
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Nosocomial diseases 7
Which portal of exit can expel the most viral particles? - correct answer...✔✔Respiratory
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Which type of disease is sickle cell anemia? - correct answer...✔✔Noninfectious
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Which type of transmission occurs when tuberculosis is spread through small particles exp
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elled by a cough? - correct answer...✔✔Droplet transmission
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AGRADESOLUTIONS
,Which type of transmission occurs when pathogens are spread from mother to child during
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breastfeeding? - correct answer...✔✔Vertical direct contact transmission
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Which type of transmission occurs when an arthropod carries a viral pathogen inside of its
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body? - correct answer...✔✔Biological vector transmission
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Which type of transmission occurs through contact with a fomite? - correct answer...✔✔
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Indirect contact transmission 7 7
Which infected host would be considered a passive carrier? - correct answer...✔✔
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A healthcare professional who does not wash their hands after seeing an infected patient
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How is Giardia lamblia, the causative agent of giardiasis, transmitted? - correct answer...
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✔✔Contaminated food or water 7 7 7
Which organism is the definitive host of Toxoplasma gondii? - correct answer...✔✔Birds
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Which disease is transmitted by animals but not arthropods? - correct answer...✔✔
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Rabies
How can adhesins be described? - correct answer...✔✔
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Adhesins found on the surface of pathogens bind to receptors of host cells.
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Which description indicates a portal of entry? - correct answer...✔✔
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Body features through which pathogens can enter host tissue
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Pathogens produce proteins to prevent the fusion of the phagosome and the lysosome (ph
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agolysosome).Why does this virulence factor facilitate invasion? - correct answer...✔✔ 7 7 7 7 7 7 7 7 7
It prevents the exposure of pathogens to lethal digestive enzymes.
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Which action refers to a secondary infection? - correct answer...✔✔
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An infection by one pathogen enables another pathogen to cause an infection.
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What differentiates signs from symptoms of disease? - correct answer...✔✔
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Signs are measurable; symptoms are subjective.
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Which procedure does a clinician use to measure a symptom? - correct answer...✔✔
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Asking patients to rate pain on a numerical scale
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During which stage of an infection does a patient feel the worst? - correct answer...✔✔
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The period of illness stage
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What defines the end of the incubation period for an infectious disease? - correct answer...
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✔✔The appearance of nonspecific signs or symptoms of disease
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AGRADESOLUTIONS
, How does the epidermis help prevent infection and disease? - correct answer...✔✔
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It provides a harsh environment for most pathogens and periodically sheds
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How does the complement system contribute to the innate immune response? -
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7correct answer...✔✔ 7
It is composed of proteins that can be activated by the presence of pathogens to form the m
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embrane attack complex (MAC). 7 7 7
Why are antimicrobial peptides (AMPs) considered an innate immune function? -
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correct answer...✔✔AMPs are produced both routinely and as a response to pathogens.
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Which terms refer to monocytes when they differentiate into tissue-specific phagocytes? -
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correct answer...✔✔Macrophages and dendritic cells
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What is specifically being reported if the Centers for Disease Control and Prevention report
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s 10,000 new cases of COVID-19? - correct answer...✔✔Incidence
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What is the difference between prevalence and incidence? - correct answer...✔✔
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Prevalence refers to the total number of infections; incidence refers only to new cases.
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Which term refers to a disease that occurs on a worldwide scale at a given time? -
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correct answer...✔✔Pandemic
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Why are etiologic agents significant to epidemiologists? - correct answer...✔✔
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Etiologic agents are the pathogens that cause disease.
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Which kind of diseases must be reported to the Centers for Disease Control and Preventio
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n in order to prevent future pandemics? - correct answer...✔✔Notifiable diseases
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How does the Centers for Disease Control and Prevention (CDC) obtain the latest data on t
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ypical illnesses to publish in the Morbidity and Mortality Weekly Report (MMWR)? -
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correct answer...✔✔
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Through mandatory reporting of notifiable disease cases by healthcare providers
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What can cause an infectious disease to become a reemerging disease? -
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correct answer...✔✔The responsible pathogen becomes drug resistant.
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What does the World Health Organization (WHO) do to prevent future pandemics? -
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correct answer...✔✔
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The WHO maintains a global alert and response system from data from multiple countries.
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A patient taking the antibiotic cephalexin for a urinary tract infection developed severe diarr
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hea two days after completing the five-day course of treatment.
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What is an explanation for the development of this patient's diarrhea? - correct answer...✔
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✔Cephalexin disrupted the normal intestinal microbiome. 7 7 7 7 7
AGRADESOLUTIONS
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