WGU D311 MICROBIOLOGY UPDATED EVALUATION TEST
QUESTIONS AND ANSWERS MARKED A+
✔✔Which activity of the complement system would be useful against an infection
caused by a gram-negative bacterium? - ✔✔Membrane attack complex
✔✔Which body system is protected by the ciliary escalator? - ✔✔Respiratory
✔✔What is the role of global public health organizations in eradication of diseases, like
polio? - ✔✔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? -
✔✔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? -
✔✔These individuals all consumed contaminated food from a common manufacturing
source.
✔✔Which action is an innate physical defense? - ✔✔Mucous secretions trapping and
removing microbes from the respiratory tract.
✔✔Which vaccine type would be effective against an organism that can produce a
capsule? - ✔✔Conjugate
✔✔Vhich protocol for microbial growth control leaves the least number of living cells? -
✔✔Sterilization
✔✔Which type of microbial control is necessary for surgical equipment? -
✔✔Sterilization
✔✔How are spore-forming bacteria killed to make canned foods safe for consumption?
- ✔✔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? -
✔✔Phenolics
✔✔Why is boiling not used as a sterilization method In clinical settings? - ✔✔Boiling is
not effective against endospores.
, ✔✔Why do beta-lactamase-producing pathogens cause public concern for a
community? - ✔✔Beta-lactamase is an enzyme that protects the pathogen from some
common antibiotics.
✔✔Why are antlhelmlnthlc drugs difficult to develop? - ✔✔Helminths are eukaryotes,
and it is difficult to develop medications with selective toxicity for them.
✔✔Which pathogen is susceptible to beta-lactam antimicrobials? - ✔✔Prokaryotic
pathogens are susceptible to beta-lactam antimicrobials.
✔✔Which process is targeted by antivirals? - ✔✔Antivirals target the process of nucleic
acid synthesis in viruses.
✔✔Which term describes how bacteriostatic antibiotics become bactericidal when the
drugs are used together? - ✔✔The term that describes how bacteriostatic antibiotics
become bactericidal when used together is "Synergism."
✔✔How can pathogens typically found in animal feces, such as hantavlrus, be
transmitted through air? - ✔✔Dried fecal particles are carried on dust and inhaled by
humans.
✔✔Which cellular component is conjugated to protein antigens to improve efficacy In
the conjugate vaccine. especially for children under the age of two? - ✔✔Capsule
polysaccharide
✔✔What is the disadvantage of a live attenuated vaccine? - ✔✔Risk of reversion
✔✔How do vaccines help the body fight against viruses? - ✔✔By training the adaptive
immune system
✔✔Which vaccine type would be useful against a toxin-producing strain of bacteria? -
✔✔Toxoid vaccine
✔✔Which vaccine type would result in both a cell-mediated and humoral immune
response because pathogens are able to grow in the host? - ✔✔Attenuated viral
vaccine
✔✔Why would conjugate vaccines have higher efficacy than a subunit vaccine for the
same pathogen? - ✔✔Conjugate vaccines combine an antigen that creates a weak
immune response with an antigen that creates a strong immune response, which can
result in higher efficacy compared to a subunit vaccine for the same pathogen.
QUESTIONS AND ANSWERS MARKED A+
✔✔Which activity of the complement system would be useful against an infection
caused by a gram-negative bacterium? - ✔✔Membrane attack complex
✔✔Which body system is protected by the ciliary escalator? - ✔✔Respiratory
✔✔What is the role of global public health organizations in eradication of diseases, like
polio? - ✔✔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? -
✔✔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? -
✔✔These individuals all consumed contaminated food from a common manufacturing
source.
✔✔Which action is an innate physical defense? - ✔✔Mucous secretions trapping and
removing microbes from the respiratory tract.
✔✔Which vaccine type would be effective against an organism that can produce a
capsule? - ✔✔Conjugate
✔✔Vhich protocol for microbial growth control leaves the least number of living cells? -
✔✔Sterilization
✔✔Which type of microbial control is necessary for surgical equipment? -
✔✔Sterilization
✔✔How are spore-forming bacteria killed to make canned foods safe for consumption?
- ✔✔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? -
✔✔Phenolics
✔✔Why is boiling not used as a sterilization method In clinical settings? - ✔✔Boiling is
not effective against endospores.
, ✔✔Why do beta-lactamase-producing pathogens cause public concern for a
community? - ✔✔Beta-lactamase is an enzyme that protects the pathogen from some
common antibiotics.
✔✔Why are antlhelmlnthlc drugs difficult to develop? - ✔✔Helminths are eukaryotes,
and it is difficult to develop medications with selective toxicity for them.
✔✔Which pathogen is susceptible to beta-lactam antimicrobials? - ✔✔Prokaryotic
pathogens are susceptible to beta-lactam antimicrobials.
✔✔Which process is targeted by antivirals? - ✔✔Antivirals target the process of nucleic
acid synthesis in viruses.
✔✔Which term describes how bacteriostatic antibiotics become bactericidal when the
drugs are used together? - ✔✔The term that describes how bacteriostatic antibiotics
become bactericidal when used together is "Synergism."
✔✔How can pathogens typically found in animal feces, such as hantavlrus, be
transmitted through air? - ✔✔Dried fecal particles are carried on dust and inhaled by
humans.
✔✔Which cellular component is conjugated to protein antigens to improve efficacy In
the conjugate vaccine. especially for children under the age of two? - ✔✔Capsule
polysaccharide
✔✔What is the disadvantage of a live attenuated vaccine? - ✔✔Risk of reversion
✔✔How do vaccines help the body fight against viruses? - ✔✔By training the adaptive
immune system
✔✔Which vaccine type would be useful against a toxin-producing strain of bacteria? -
✔✔Toxoid vaccine
✔✔Which vaccine type would result in both a cell-mediated and humoral immune
response because pathogens are able to grow in the host? - ✔✔Attenuated viral
vaccine
✔✔Why would conjugate vaccines have higher efficacy than a subunit vaccine for the
same pathogen? - ✔✔Conjugate vaccines combine an antigen that creates a weak
immune response with an antigen that creates a strong immune response, which can
result in higher efficacy compared to a subunit vaccine for the same pathogen.
