Textbook Question
Which of the following substances would most effectively inhibit anaerobes?
a. Phenol
b. Silver
c. Ethanol
d. Hydrogen peroxide
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11. Controlling Microbial Growth
Review of Chemicals Used to Control Microbial Growth
Struggling with Microbiology?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which of the following substances is a non-biodegradable household surface-active agent?
A
Alcohol.
B
Soaps.
C
Detergent.
D
Bleach.
Verified step by step guidance1
Understand the concept of biodegradability: Biodegradable substances can be broken down by microorganisms into simpler, non-toxic substances. Non-biodegradable substances cannot be easily decomposed by natural processes.
Identify the nature of each substance: Alcohol, soaps, and bleach are generally considered biodegradable because they can be broken down by microorganisms.
Recognize the characteristics of detergents: Detergents are synthetic compounds that are often non-biodegradable due to their complex chemical structure, which resists microbial decomposition.
Consider environmental impact: Non-biodegradable substances can accumulate in the environment, leading to pollution and harm to ecosystems.
Conclude that detergents are typically non-biodegradable household surface-active agents, unlike alcohol, soaps, and bleach.
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