Microbiology Chapter 11 Quiz

Chapter 11 Notes

• Contaminants are microbes present at a place and time that are undesirable or unwanted
• Decontamination methods employ physical or chemical agents
• Microbes are categorized into 3 resistance groups:
  • Highest resistance
  • Moderate resistance
  • Least resistance
• Sterilization destroys/removes all viable microorganisms (including viruses):
  • Can't be almost sterile, it either is or isn't
• Stasis/static means to stand still
• Microbistasis is when microbes are temporarily prevented from multiplying, but not killed
• Disinfection uses a physical or chemical agent to destroy vegetative pathogens, not bacterial endospores
• Antiseptics are applied directly to exposed skin
• Sanitization removes debris, soil, microorganisms, and toxins from surfaces
• With living tissue, reducing microbial load through mechanical means is called degermation
• Chemical/physical agents damage microbes at the cellular/molecular level
• Microbial death is the permanent loss of reproductive capacity, even under optimal conditions
• Surfactants reduce surface tension of cell membranes
• Microbial function depends on an orderly/continuous supply of proteins
• Any chemical blocking this process affects function and survival.

Test your knowledge on microbial contaminants and decontamination methods covered in Chapter 11. This quiz explores the different categories of microbial resistance, sterilization processes, and techniques for disinfection and sanitization. Prepare to assess your understanding of these critical microbiological concepts.