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WGU D311 MICROBIOLOGY OA NEWEST 2025
ACTUAL EXAM| COMPLETE 200 QUESTIONS
AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) ALREADY GRADED A+||
BRAND NEW!!
Why are the relationships between pathogenic microbes and their hosts considered parasitic? - ANSWER - The microbe benefits from the interaction while the host is harmed.
Which characteristic of dracunculiasis has been pivotal to the success of its eradication campaign? - ANSWER - Dracunculiasis has no animal reservoir.
Which type of organism would be most likely to grow on food stored in a refrigerator or freezer? - ANSWER - A psychrophile would be most likely to grow on food stored in a refrigerator or freezer as these microorganisms thrive in cold temperatures.
Which type of infections are prevented by proper sterilization of hospital equipment and healthcare worker handwashing? - ANSWER - Nosocomial infections are prevented by proper sterilization of hospital equipment and healthcare worker handwashing.
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pg. 2 A patient Is determined to have contracted Lyme disease after being bit by an infected tick. What type of transmission is described in this scenario? - ANSWER - Vector transmission is described in this scenario.
Which is a description of vehicle transmission? - ANSWER - A person drinks untreated water on vacation and later has diarrhea and nausea is a description of vehicle transmission.
Which organism type contains species that perform adhesion through the unique use of its flagella to move out fluid from under a large adhesive disc, resulting in lower pressure to adhere to the intestinal lining? - ANSWER - Protozoa
A patient presents to the emergency department with high fever.difficulty breathing. vomiting, coughing up blood. and severe chest pain when inhaling. Which pathogen would the provider suspect? - ANSWER - Bacillus anthracis
Which activity of the complement system would be useful against an infection caused by a gram-negative bacterium? - ANSWER - Membrane attack complex
Which body system is protected by the ciliary escalator? - ANSWER - Respiratory
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pg. 3 What is the role of global public health organizations in eradication of diseases, like polio? - ANSWER - Organize vaccination campaigns and programs
Malaria cases are routinely found in certain areas of the world but are not seen In other areas. How would malaria be described in those areas where it is found? - ANSWER - Endemic
A hospital notices an increase in patients being admitted with gastrointestinal symptoms and dehydration over a two-week period. An epidemiological analysis reveals that the cause is the same pathogen, but that none of the hospitalized individuals were ever in the same location at the same time. What is an explanation for this analysis? - ANSWER - These individuals all consumed contaminated food from a common manufacturing source.
Which action is an innate physical defense? - ANSWER - Mucous secretions trapping and removing microbes from the respiratory tract.
Which vaccine type would be effective against an organism that can produce a capsule? - ANSWER - Conjugate
Which protocol for microbial growth control leaves the least number of living cells? - ANSWER - Sterilization
Which type of microbial control is necessary for surgical equipment? - ANSWER - Sterilization 3 / 4
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pg. 4 How are spore-forming bacteria killed to make canned foods safe for consumption? - ANSWER - Heat and pressure
Which type of microbial control is used in a variety of situations, from doorknobs to swimming pools to diaper cream. to prevent the growth and spread of microbes? - ANSWER - Phenolics
Why is boiling not used as a sterilization method In clinical settings? - ANSWER - Boiling is not effective against endospores.
Why do beta-lactamase-producing pathogens cause public concern for a community? - ANSWER - Beta-lactamase is an enzyme that protects the pathogen from some common antibiotics.
Why are antlhelmlnthlc drugs difficult to develop? - ANSWER - Helminths are eukaryotes, and it is difficult to develop medications with selective toxicity for them.
Which pathogen is susceptible to beta-lactam antimicrobials? - ANSWER - Prokaryotic pathogens are susceptible to beta-lactam antimicrobials.
Which process is targeted by antivirals? - ANSWER - Antivirals target the process of nucleic acid synthesis in viruses.
Which term describes how bacteriostatic antibiotics become bactericidal when the drugs are used together? - ANSWER - The term that describes
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