Scelta multipla
Which structures do bacteriophages use to attach to host cell receptors?
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7. Prokaryotic Cell Structures & Functions
Introduction to Bacterial Cell Walls
Scelta multipla
Which cellular component found in some bacterial cells enhances their ability to cause disease by protecting them from host immune responses?
A
Plasmid
B
Capsule
C
Ribosome
D
Flagellum
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Understand the question is asking about a bacterial cellular component that increases pathogenicity by protecting bacteria from the host's immune system.
Recall that a plasmid is a small DNA molecule separate from chromosomal DNA, often carrying antibiotic resistance genes, but it does not directly protect against immune responses.
Consider ribosomes, which are involved in protein synthesis and do not provide protection from immune defenses.
Evaluate the flagellum, which aids in bacterial motility but does not shield bacteria from immune attack.
Identify the capsule as a polysaccharide layer surrounding some bacteria that helps evade phagocytosis and immune detection, thereby enhancing their ability to cause disease.
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