Microbiology Practice Exam

Question: 1 / 400

What is the role of capsule structures in bacterial cells?

Protein synthesis

Protection from phagocytosis

Capsule structures in bacterial cells play a crucial role in providing protection from phagocytosis, which is the process by which certain immune cells engulf and destroy pathogens. The capsule is typically composed of polysaccharides, and its presence creates a physical barrier that inhibits phagocytes from recognizing and ingesting the bacteria. This protective feature allows encapsulated bacteria to evade the host's immune response, increasing their virulence and survival in hostile environments.

Capsules also contribute to other functions, such as adherence to surfaces, which can enhance colonization and biofilm formation, but the primary significance in the context of this question is the protective role against phagocytosis. This characteristic is particularly important for pathogenic bacteria, as it enables them to persist longer within the host and increase their chances of causing disease.

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Energy storage

Genetic material storage

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