18 Questions
Which type of heat treatment is preferred for moisture-sensitive materials?
Dry Heat
What is the primary purpose of sterilization in a microbial growth control context?
To completely destroy all forms of microbial life, including endospores
What is the primary purpose of pasteurization in food processing?
To lower microbial counts to safe public health levels
What is the term for the destruction of vegetative pathogens on living tissue?
Antisepsis
What is the term for the mechanical removal of microbes from a limited area?
Degerming
What is the term for the application of treatment intended to lower microbial counts to safe public health levels?
Sanitization
What is the primary purpose of Selective Media?
To suppress the growth of unwanted microbes while promoting desired ones
Which type of media is used to grow Chemoautotrophs and Photoautotrophs?
Nonsynthetic/Complex Media
What is the purpose of Differential Media?
To differentiate between various microorganisms
Which type of media is used to cultivate Fastidious Organisms?
Enrichment Media
What is the purpose of Nonsynthetic/Complex Media?
To encourage the growth of all microorganisms
Which of the following is an example of Differential Media?
MacConkey Agar
What is the mechanism of action of Cationic (+) detergents in sanitizing?
Protein denaturation and disruption of plasma membrane
Which gaseous sterilant is commonly used due to its high penetration ability and is also carcinogenic?
Ethylene Oxide
What is the purpose of using Biological Indicators in sterilization?
To check the efficacy of sterilization
What is the mechanism of action of Biguanides, such as Chlorhexidine, in skin disinfection?
Disruption of plasma membrane
Which method is commonly used to get pure cultures of microorganisms?
Streak Plate Method
What is the classification of antibiotics that inhibit cell wall synthesis, such as Cephalosporins and Bacitracin?
Bactericidal
Test your knowledge on different types of media used in microbiology, including agar and broth, and understand the concepts of microbial growth control, such as sterilization, disinfection, and antisepsis. This quiz covers the basics of microbiology and is perfect for students and enthusiasts alike.
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