A Hypothetical Bacterium Swims Among Human Intestinal Contents Until It

question 35

Multiple Choice

A hypothetical bacterium swims among human intestinal contents until it finds a suitable location on the intestinal lining. It adheres to the intestinal lining using a feature that also protects it from phagocytes, bacteriophages, and dehydration. Faecal matter from a human in whose intestine this bacterium lives can spread the bacterium, even after being mixed with water and boiled. The bacterium is not susceptible to the penicillin family of antibiotics. It contains no plasmids and relatively little peptidoglycan.
-Adherence to the intestinal lining by this bacterium is due to its possession of ________.

• A) fimbriae
• B) pili
• C) a capsule
• D) a flagellum

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Definitions:

Plentiful Water

Refers to the abundance of water in an environment, essential for sustaining life and various ecological and biological processes.

Biome

A large naturally occurring community of flora and fauna occupying a major habitat, e.g., forest or tundra.

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Plants featuring leaves with spines, often as a defense mechanism against herbivores.

Rainfall

The part of the water cycle where water vapor in the atmosphere condenses into liquid drops and precipitates back to Earth's surface.