WGU D311 Microbiology 2024 study for OA QUESTIONS WITH COMPLETE SOLUTION
3 views 0 purchase
Course
WGU D311
Institution
WGU D311
What is a characteristic of rhizospheres? - CORRECT ANSWER The rhizosphere is
where plants release organic compounds that can be metabolized by microbes
into soil.
Which environment would contain microbes that are psychrophilic? - CORRECT
ANSWER Glaciers
What is the role of nematodes in soil? ...
WGU D311 Microbiology 2024 study for OA QUESTIONS
WITH COMPLETE SOLUTION
What is a characteristic of rhizospheres? - CORRECT ANSWER The rhizosphere is
where plants release organic compounds that can be metabolized by microbes
into soil.
Which environment would contain microbes that are psychrophilic? - CORRECT
ANSWER Glaciers
What is the role of nematodes in soil? - CORRECT ANSWER They photosynthesize
and fix nitrogen.
Which eukaryote is responsible for producing antibiotics to ward off bacterial
competitors? - CORRECT ANSWER Fungi
Which symbiotic relationship is an example of mutualism? - CORRECT ANSWER
The relationship between humans and the Escherichia coli colonizing the human
gut
Which type of symbiotic relationship exists between the Escherichia coli (E. coli)
that inhabit the human gut and the humans who utilize the vitamin K produced by
E. coli? - CORRECT ANSWER Mutualism
Which description of resident microbiota is true? - CORRECT ANSWER Resident
microbiota constantly live on the human body.
Which relationship is exhibited by intestinal Escherichia coli and their human
host? - CORRECT ANSWER Mutualism
Which type of disease is transmitted from animals to humans? - CORRECT
ANSWER Zoonotic diseases
Which type of disease is acquired in hospital settings? - CORRECT ANSWER
Nosocomial diseases
Which portal of exit can expel the most viral particles? - CORRECT ANSWER
Respiratory
Which type of disease is sickle cell anemia? - CORRECT ANSWER Noninfectious
Which type of transmission occurs when tuberculosis is spread through small
particles expelled by a cough? - CORRECT ANSWER Droplet transmission
Which type of transmission occurs when pathogens are spread from mother to
child during breastfeeding? - CORRECT ANSWER Vertical direct contact
transmission
Which type of transmission occurs when an arthropod carries a viral pathogen
inside of its body? - CORRECT ANSWER Biological vector transmission
Which type of transmission occurs through contact with a fomite? - CORRECT
ANSWER Indirect contact transmission
,WGU D311 Microbiology 2024 study for OA QUESTIONS
WITH COMPLETE SOLUTION
Which infected host would be considered a passive carrier? - CORRECT ANSWER
A healthcare professional who does not wash their hands after seeing an infected
patient
How is Giardia lamblia, the causative agent of giardiasis, transmitted? - CORRECT
ANSWER Contaminated food or water
Which organism is the definitive host of Toxoplasma gondii? - CORRECT ANSWER
Birds
Which disease is transmitted by animals but not arthropods? - CORRECT ANSWER
Rabies
How can adhesins be described? - CORRECT ANSWER Adhesins found on the
surface of pathogens bind to receptors of host cells.
Which description indicates a portal of entry? - CORRECT ANSWER Body features
through which pathogens can enter host tissue
Pathogens produce proteins to prevent the fusion of the phagosome and the
lysosome (phagolysosome).Why does this virulence factor facilitate invasion? -
CORRECT ANSWER It prevents the exposure of pathogens to lethal digestive
enzymes.
Which action refers to a secondary infection? - CORRECT ANSWER An infection by
one pathogen enables another pathogen to cause an infection.
What differentiates signs from symptoms of disease? - CORRECT ANSWER Signs
are measurable; symptoms are subjective.
Which procedure does a clinician use to measure a symptom? - CORRECT
ANSWER Asking patients to rate pain on a numerical scale
During which stage of an infection does a patient feel the worst? - CORRECT
ANSWER The period of illness stage
What defines the end of the incubation period for an infectious disease? -
CORRECT ANSWER The appearance of nonspecific signs or symptoms of disease
How does the epidermis help prevent infection and disease? - CORRECT ANSWER
It provides a harsh environment for most pathogens and periodically sheds
How does the complement system contribute to the innate immune response? -
CORRECT ANSWER It is composed of proteins that can be activated by the
presence of pathogens to form the membrane attack complex (MAC).
Why are antimicrobial peptides (AMPs) considered an innate immune function? -
CORRECT ANSWER AMPs are produced both routinely and as a response to
pathogens.
, WGU D311 Microbiology 2024 study for OA QUESTIONS
WITH COMPLETE SOLUTION
Which terms refer to monocytes when they differentiate into tissue-specific
phagocytes? - CORRECT ANSWER Macrophages and dendritic cells
What is specifically being reported if the Centers for Disease Control and
Prevention reports 10,000 new cases of COVID-19? - CORRECT ANSWER
Incidence
What is the difference between prevalence and incidence? - CORRECT ANSWER
Prevalence refers to the total number of infections; incidence refers only to new
cases.
Which term refers to a disease that occurs on a worldwide scale at a given time? -
CORRECT ANSWER Pandemic
Why are etiologic agents significant to epidemiologists? - CORRECT ANSWER
Etiologic agents are the pathogens that cause disease.
Which kind of diseases must be reported to the Centers for Disease Control and
Prevention in order to prevent future pandemics? - CORRECT ANSWER Notifiable
diseases
How does the Centers for Disease Control and Prevention (CDC) obtain the latest
data on typical illnesses to publish in the Morbidity and Mortality Weekly Report
(MMWR)? - CORRECT ANSWER Through mandatory reporting of notifiable
disease cases by healthcare providers
What can cause an infectious disease to become a reemerging disease? -
CORRECT ANSWER The responsible pathogen becomes drug resistant.
What does the World Health Organization (WHO) do to prevent future
pandemics? - CORRECT ANSWER The WHO maintains a global alert and response
system from data from multiple countries.
A patient taking the antibiotic cephalexin for a urinary tract infection developed
severe diarrhea two days after completing the five-day course of treatment.
What is an explanation for the development of this patient's diarrhea? - CORRECT
ANSWER Cephalexin disrupted the normal intestinal microbiome.
Store-bought, packaged soil used to promote rapid plant growth was accidentally
irradiated, thus killing the bacteria that had been in the soil.
Which impact would this have on farmers? - CORRECT ANSWER Plants would die
due to a lack of absorbable forms of nitrogen and phosphorus.
A hospital infection preventionist has instituted a policy to prevent nosocomial
infections.
Which guideline is an effective component of this policy? - CORRECT ANSWER
Healthcare personnel must wear personal protective equipment at all times.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller EXPERTIPS. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.49. You're not tied to anything after your purchase.
