Multiple choice

What is the main function of capsules in bacteria?

  1. To resist phagocytosis

  2. Helps in attachment to solid surface

  3. Motility

  4. Protection from osmotic lysis

  5. Bacterial mating
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A Correct answer
Explanation

Some bacteria make glycocalyx material that forms capsules around their cell walls. This property increases the virulence of the species. The capsule resists the host’s defenses by impairing phagocytosis (the process by which certain cells of the body engulf and destroy microbes) by evading the complement and antibody body defense responses. The chemical nature of the capsule appears to prevent the phagocytic cell from adhering to the bacterium.

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