Podcast
Questions and Answers
What is the purpose of biosafety levels in laboratories?
What is the purpose of biosafety levels in laboratories?
- To determine the temperature at which microbes die
- To specify the color-coding of lab equipment
- To categorize laboratory practices, safety equipment, and facility construction controls required for handling pathogens (correct)
- To classify different microbes based on their level of hazard
In biosafety level 3 (BSL-3), what is the key requirement for handling microbes?
In biosafety level 3 (BSL-3), what is the key requirement for handling microbes?
- Isolation of lab space
- Wearing protective suits
- Use of safety cabinets (correct)
- Handling moderately hazardous agents
What is the primary effect of high temperatures on microbes?
What is the primary effect of high temperatures on microbes?
- Promote nucleic acid replication
- Enhance cell wall structure
- Strengthen cytoplasmic membranes
- Denature proteins (correct)
What is the significance of Thermal Death Point (TDP) in microbial control?
What is the significance of Thermal Death Point (TDP) in microbial control?
What is the primary purpose of using high pressure as a method of microbial control?
What is the primary purpose of using high pressure as a method of microbial control?
What is the main function of desiccation in microbial control?
What is the main function of desiccation in microbial control?
What type of radiation is described as high-speed subatomic particles freed from their atoms?
What type of radiation is described as high-speed subatomic particles freed from their atoms?
Which type of radiation damages DNA by ionizing water to release OH?
Which type of radiation damages DNA by ionizing water to release OH?
What type of radiation damages DNA and is specifically mentioned as not being especially antimicrobial when using microwaves?
What type of radiation damages DNA and is specifically mentioned as not being especially antimicrobial when using microwaves?
Which of the following is NOT mentioned as a principle affecting the effectiveness of chemical methods of microbial control?
Which of the following is NOT mentioned as a principle affecting the effectiveness of chemical methods of microbial control?
What is the main setback of using Phenol (Carbolic Acid) as a disinfectant?
What is the main setback of using Phenol (Carbolic Acid) as a disinfectant?
Which type of microbial cell component is disrupted by Phenolics as a part of their mechanism of action?
Which type of microbial cell component is disrupted by Phenolics as a part of their mechanism of action?
What is the primary reason for halting protein synthesis through action on RNA?
What is the primary reason for halting protein synthesis through action on RNA?
Which of the following is NOT an ideal characteristic of a microbial control agent?
Which of the following is NOT an ideal characteristic of a microbial control agent?
What is the primary purpose of using high-level germicides?
What is the primary purpose of using high-level germicides?
Which characteristic does NOT affect the efficacy of antimicrobial methods?
Which characteristic does NOT affect the efficacy of antimicrobial methods?
What is the primary goal of applying biosafety precautions?
What is the primary goal of applying biosafety precautions?
What is the function of low-level germicides?
What is the function of low-level germicides?
What is the recommended optimum concentration of ethanol for killing bacteria and fungi?
What is the recommended optimum concentration of ethanol for killing bacteria and fungi?
Why is pure ethanol (100%) less effective than 70% ethanol for microbial denaturation?
Why is pure ethanol (100%) less effective than 70% ethanol for microbial denaturation?
How do quaternary ammonium compounds (Quats) primarily affect bacterial cells?
How do quaternary ammonium compounds (Quats) primarily affect bacterial cells?
What is one limitation of using hydrogen peroxide to treat open wounds?
What is one limitation of using hydrogen peroxide to treat open wounds?
How do surface-active agents (surfactants) primarily assist in removing microorganisms?
How do surface-active agents (surfactants) primarily assist in removing microorganisms?
Which alcohol is slightly superior to ethanol due to being less volatile and less expensive?
Which alcohol is slightly superior to ethanol due to being less volatile and less expensive?
Which heavy metal is commonly used as a topical cream on burns?
Which heavy metal is commonly used as a topical cream on burns?
What is the primary mechanism of action for organic acid food preservatives?
What is the primary mechanism of action for organic acid food preservatives?
Which heavy metal compound is used as an algicide?
Which heavy metal compound is used as an algicide?
What is the primary mechanism of action for antibiotics used as food preservatives?
What is the primary mechanism of action for antibiotics used as food preservatives?
Which heavy metal compound is used to prevent gonorrheal ophthalmia neonatorum?
Which heavy metal compound is used to prevent gonorrheal ophthalmia neonatorum?
Which heavy metal compound contains both mercury and sodium?
Which heavy metal compound contains both mercury and sodium?
