Multiple Choice
Which of the following best describes the action of germicidal chemicals?
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11. Controlling Microbial Growth
Introduction to Controlling Microbial Growth
Struggling with Microbiology?
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Which preservation technique aims to control microbial growth by removing moisture from the environment?
A
Desiccation
B
Pasteurization
C
Irradiation
D
Filtration
Verified step by step guidance1
Understand that microbial growth requires certain conditions, including moisture, nutrients, and suitable temperature.
Recognize that preservation techniques work by altering these conditions to inhibit or kill microbes.
Identify that desiccation is the process of removing moisture from the environment, which limits microbial growth because microbes need water to survive and reproduce.
Compare other options: Pasteurization uses heat to kill microbes, irradiation uses radiation to damage microbial DNA, and filtration physically removes microbes from liquids or air.
Conclude that the technique specifically aimed at controlling microbial growth by removing moisture is desiccation.
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