WGU D311: Microbiology with Lab: Section 3 || All Solved.
Which factor determines the level of bioburden (microbial level) allowed and, therefore, the
microbial controls required for items used in a general healthcare setting? correct answers The
application or use of the item
Which laboratory biosafety level would be used for managing work with an organism of
moderate risk that is native to the local area? correct answers BSL-2
Which microbial control type can be used to completely eliminate all vegetative bacteria,
endospores, fungi, and viruses from an inanimate item? correct answers Sterilization
Which term describes the area specifically created and maintained for performing medical
procedures that carry risk from contamination? correct answers Sterile field
Which physical method of control works by removing microorganisms from a liquid? correct
answers Filtration
Which physical method of control is used to denature proteins and alter membranes of
microorganisms to prevent spoilage of milk, apple juice, honey, and other ingestible items to
reduce microorganism levels? correct answers Pasteurization
Which technique will ensure that Clostridium botulinum and botulinum toxin cannot cause
foodborne illness? correct answers Boiling foods for at least 10 minutes prior to eating.
Which method would be used to sterilize an antibiotic solution? correct answers Membrane
filtration
Which chemical treatment would be used before a disinfectant to reach a soiled surface? correct
answers A surfactant
, Which class of chemical disinfectant denatures proteins and disrupts membranes? correct
answers Phenolics
Which chemical is commonly used for hand sanitizers and to degerm a site prior to injections
due to its effective destruction of vegetative bacteria by denaturing proteins and its quick drying
properties? correct answers Alcohols
Which chemical is effective at killing bacterial endospores with sufficient time and
concentration? correct answers Peroxygens
Which factor is of particular importance when administering an antibacterial drug to an
immunocompromised patient due to the patient's inability to clear infections? correct answers
Bactericidal antimicrobial
Which antibacterial drug works by inhibiting nucleic acid synthesis? correct answers
Fluoroquinolones
What is showcased when two antibiotics provide bacteriostatic inhibition when taken separately
but bactericidal inhibition when combined? correct answers Synergism
Which drug class inhibits cell wall biosynthesis? correct answers Penicillins
Which antimicrobial agent is effective against a cold sore caused by a herpes infection? correct
answers Antivirals
Which organism would be affected by an antimicrobial agent that disrupts peptidoglycan
synthesis? correct answers Bacteria
Which cellular function would be disrupted by an antimicrobial that targets peptidoglycan
synthesis? correct answers Cell wall synthesis
Which factor determines the level of bioburden (microbial level) allowed and, therefore, the
microbial controls required for items used in a general healthcare setting? correct answers The
application or use of the item
Which laboratory biosafety level would be used for managing work with an organism of
moderate risk that is native to the local area? correct answers BSL-2
Which microbial control type can be used to completely eliminate all vegetative bacteria,
endospores, fungi, and viruses from an inanimate item? correct answers Sterilization
Which term describes the area specifically created and maintained for performing medical
procedures that carry risk from contamination? correct answers Sterile field
Which physical method of control works by removing microorganisms from a liquid? correct
answers Filtration
Which physical method of control is used to denature proteins and alter membranes of
microorganisms to prevent spoilage of milk, apple juice, honey, and other ingestible items to
reduce microorganism levels? correct answers Pasteurization
Which technique will ensure that Clostridium botulinum and botulinum toxin cannot cause
foodborne illness? correct answers Boiling foods for at least 10 minutes prior to eating.
Which method would be used to sterilize an antibiotic solution? correct answers Membrane
filtration
Which chemical treatment would be used before a disinfectant to reach a soiled surface? correct
answers A surfactant
, Which class of chemical disinfectant denatures proteins and disrupts membranes? correct
answers Phenolics
Which chemical is commonly used for hand sanitizers and to degerm a site prior to injections
due to its effective destruction of vegetative bacteria by denaturing proteins and its quick drying
properties? correct answers Alcohols
Which chemical is effective at killing bacterial endospores with sufficient time and
concentration? correct answers Peroxygens
Which factor is of particular importance when administering an antibacterial drug to an
immunocompromised patient due to the patient's inability to clear infections? correct answers
Bactericidal antimicrobial
Which antibacterial drug works by inhibiting nucleic acid synthesis? correct answers
Fluoroquinolones
What is showcased when two antibiotics provide bacteriostatic inhibition when taken separately
but bactericidal inhibition when combined? correct answers Synergism
Which drug class inhibits cell wall biosynthesis? correct answers Penicillins
Which antimicrobial agent is effective against a cold sore caused by a herpes infection? correct
answers Antivirals
Which organism would be affected by an antimicrobial agent that disrupts peptidoglycan
synthesis? correct answers Bacteria
Which cellular function would be disrupted by an antimicrobial that targets peptidoglycan
synthesis? correct answers Cell wall synthesis
