Multiple Choice
Which of the following statements about human pathogenic bacteria is correct?
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1. Introduction to Microbiology
Members of the Bacterial World
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Which bacterial structure primarily protects bacteria from being phagocytized by host immune cells?
A
Cell wall
B
Capsule
C
Ribosome
D
Flagellum
Verified step by step guidance1
Understand the role of each bacterial structure listed: the cell wall provides structural support and shape, ribosomes are involved in protein synthesis, and flagella are used for motility.
Recall that phagocytosis is a process where host immune cells engulf and destroy bacteria as a defense mechanism.
Identify which bacterial structure helps bacteria evade or resist this immune response by preventing engulfment.
Recognize that the capsule is a gelatinous outer layer that surrounds some bacteria and acts as a physical barrier, making it difficult for phagocytes to attach and engulf the bacteria.
Conclude that among the options, the capsule is the primary structure that protects bacteria from being phagocytized by host immune cells.
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