30 Questions
What does the term 'microbiology' refer to?
The study of all living organisms that are too small to be visible with the naked eye
Who is credited with inventing the petri dish?
Julius Richard Petri
Which field of microbiology focuses on multicellular parasites?
Parasitology
In microbiology, what term is used to describe unicellular animal-like protists?
Protozoa
What is the primary purpose of agar in a petri dish?
To cultivate bacteria
'Virology' is the field of microbiology that focuses on which type of microorganism?
Viruses
What is the primary component of a steam autoclave?
Erlenmeyer Flask
Which laboratory tool is usually made of glass and has a conical body?
Erlenmeyer Flask
What is the purpose of laboratory tweezers and forceps in a lab environment?
To grip and manipulate small or delicate objects
Which tool is commonly used for mixing, heating, and cultivating microbes with liquid cultures?
Erlenmeyer Flask
What are Petri Dishes specifically designed for?
Growth and testing of microbes
In a laboratory setting, what are Test Tubes often used to collect?
Biological samples like blood, saliva, and urine
Why is it important to always ensure that the heating element in the autoclave is covered with water during use?
To prevent the element from overheating and burning out
What is the standard pressure used in autoclaves to achieve a chamber temperature of at least 250F?
15 PSI
What is the purpose of the biological indicator test for autoclaves?
To validate the successful sterilization process
What is the goal of sterilization in an autoclave?
To heat up the material with steam, not water
Which phase of sterilization in an autoclave involves reaching the desired temperature and pressure to kill microorganisms?
Exposure or Sterilization Phase
What is Geobacillus stearothermophilus used for in relation to autoclaves?
To validate the success of an autoclave run in killing microorganisms
What is the purpose of using flaming as a sterilization method?
To expose items to a hot flame
How do hot forced-air ovens differ from hot static-air ovens in sterilization?
Hot forced-air ovens have more reliable sanitization
What is the role of Ethylene Oxide in the sterilization process?
Disrupt cell growth and division
What is the main advantage of using hot forced-air ovens for sterilization?
More reliable sanitization
Why do thicker items enclosed in packaging require more time or higher temperature for sterilization?
To ensure complete sterilization
What is the primary function of incineration in the context of sterilization?
Complete burning of items
What is the purpose of alkylation within cells?
Prevent normal cellular metabolism
Which method is NOT used in sterilization procedures mentioned in the text?
Filtration
What is the main purpose of an incubator in laboratories?
To provide proper conditions for growth and maintenance of microorganisms
What does inoculation involve in laboratory practices?
Introducing microorganisms into a culture medium
What does aseptic technique aim to prevent?
Contamination from pathogens
Which of the following is NOT an application of incubators mentioned in the text?
Radiation sterilization
Test your knowledge about the heating element in an electric heater, its role in producing steam, and the importance of water level maintenance for preventing damage. Explore the significance of proper water levels during sterilization processes.
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