Multiple Choice
When serving raw or undercooked egg dishes to high-risk populations, which type of eggs should be used to minimize the risk of foodborne illness?
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1. Introduction to Microbiology
Introduction to Microbiology
Multiple Choice
Which of the following is the best example of a microbiome?
A
A single Escherichia coli cell in a petri dish
B
A virus infecting a bacterial cell
C
The community of microorganisms living in the human gut
D
A pure culture of Staphylococcus aureus grown in laboratory media
Verified step by step guidance1
Understand the definition of a microbiome: it refers to the entire community of microorganisms (including bacteria, viruses, fungi, and others) living in a specific environment, such as the human gut, soil, or skin.
Evaluate each option by considering whether it represents a community of microorganisms or just a single organism or a pure culture.
Option 1 describes a single Escherichia coli cell, which is just one microorganism, not a community.
Option 2 describes a virus infecting a bacterial cell, which is an interaction between two entities but not a whole community.
Option 3 describes the community of microorganisms living in the human gut, which fits the definition of a microbiome as it includes many different microorganisms coexisting in one environment.
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