Multiple Choice
Which of the following activities should be avoided when in an area with a likely source of a bloodborne pathogen?
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11. Controlling Microbial Growth
Introduction to Controlling Microbial Growth
Multiple Choice
Which of the following microbial forms are generally the easiest to kill or inhibit?
A
Vegetative bacterial cells
B
Protozoan cysts
C
Mycobacteria
D
Bacterial endospores
Verified step by step guidance1
Step 1: Understand the characteristics of each microbial form listed: vegetative bacterial cells, protozoan cysts, mycobacteria, and bacterial endospores. Each has different levels of resistance to killing or inhibition methods.
Step 2: Recognize that vegetative bacterial cells are the active, growing form of bacteria, which generally have less protective structures compared to other forms like spores or cysts.
Step 3: Know that protozoan cysts and bacterial endospores are specialized dormant forms designed to survive harsh conditions, making them much more resistant to chemical and physical agents.
Step 4: Understand that mycobacteria have a waxy, lipid-rich cell wall that provides increased resistance to many disinfectants and antibiotics, making them harder to kill than typical vegetative cells.
Step 5: Conclude that because vegetative bacterial cells lack the protective adaptations of cysts, spores, or mycobacterial cell walls, they are generally the easiest microbial form to kill or inhibit.
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