Multiple Choice
Which group of bacteria is known for containing organisms that are predators on other bacteria?
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1. Introduction to Microbiology
Members of the Bacterial World
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Which of the following is an outer membrane derived from the infected host?
A
Capsule
B
Viral envelope
C
Peptidoglycan layer
D
Flagellum
Verified step by step guidance1
Understand the structure of viruses and bacteria to differentiate between their components. Viruses often acquire an outer membrane called an envelope from the host cell during the budding process.
Recall that the viral envelope is a lipid bilayer derived from the host cell's membrane, which surrounds some viruses and helps them infect new cells.
Recognize that the capsule is a polysaccharide layer found in some bacteria, not derived from the host but produced by the bacteria themselves.
Know that the peptidoglycan layer is a rigid structure forming the bacterial cell wall, unique to bacteria and not related to host membranes.
Identify that the flagellum is a bacterial appendage used for motility, composed of protein, and not derived from the host membrane.
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