Microbiology Ch.13 (OpenStax) Exam Study
Questions with Verified Answers
Which of the following types of medical items require sterilization? - Answer Needles
Which of the following is suitable for use on tissues for microbial control to prevent infection? - Answer
Antiseptic
Which biosafety level is appropriate for research with microbes or infectious agents that pose moderate
risk to laboratory workers and the community, and are typically indigenous? - Answer BSL-2
Which of the following describes a microbial control protocol that inhibits the growth of molds and
yeast? - Answer fungistatic
The decimal reduction time refers to the amount of time it takes to which of the following? - Answer
reduce microbial population by 90%
Which of the following methods brings about cell lysis due to cavitation induced by localized pressure
changes? - Answer Sonication
Which of the following terms is used to describe the time required to kill all of the microbes within a
sample at a given temperature? - Answer Thermal death time
Which of the following microbial control methods does not actually kill microbes or inhibit their growth
but instead removes them physically from samples? - Answer Filtration
Which of the following refers to a disinfecting chemical dissolved in alcohol? - Answer Tincture
Which of the following peroxygens is widely used as a household disinfectant, is inexpensive, and breaks
down into water and oxygen gas? - Answer Hydrogen peroxide
Questions with Verified Answers
Which of the following types of medical items require sterilization? - Answer Needles
Which of the following is suitable for use on tissues for microbial control to prevent infection? - Answer
Antiseptic
Which biosafety level is appropriate for research with microbes or infectious agents that pose moderate
risk to laboratory workers and the community, and are typically indigenous? - Answer BSL-2
Which of the following describes a microbial control protocol that inhibits the growth of molds and
yeast? - Answer fungistatic
The decimal reduction time refers to the amount of time it takes to which of the following? - Answer
reduce microbial population by 90%
Which of the following methods brings about cell lysis due to cavitation induced by localized pressure
changes? - Answer Sonication
Which of the following terms is used to describe the time required to kill all of the microbes within a
sample at a given temperature? - Answer Thermal death time
Which of the following microbial control methods does not actually kill microbes or inhibit their growth
but instead removes them physically from samples? - Answer Filtration
Which of the following refers to a disinfecting chemical dissolved in alcohol? - Answer Tincture
Which of the following peroxygens is widely used as a household disinfectant, is inexpensive, and breaks
down into water and oxygen gas? - Answer Hydrogen peroxide
