A Bacterium Has the Following Characteristics

question 51

Multiple Choice

A bacterium has the following characteristics:
∙ It adheres to the human intestinal lining using a feature that protects it from phagocytes, bacteriophages, and dehydration.
∙ It can survive being boiled.
∙ It contains no plasmids and relatively little peptidoglycan.
Which of the following characteristics allows this bacterium to survive in a human who is taking penicillin pills?

• A) gram-negative cell wall
• B) peptidoglycan in the cell wall
• C) lipopolysaccharides in the cytoplasm
• D) long polypeptides in the cell wall

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Definitions:

Plant Communities

Groups of plants that live together in a specific habitat and interact with each other, forming a sort of ecological community.

Endosymbiont Theory

The theory that explains the origin of organelles like mitochondria and chloroplasts in eukaryotic cells, suggesting they were once independent prokaryotic organisms.

Mutualistic Relationships

Ecological interactions where both species involved benefit and often depend on each other for survival.

Prokaryotes

Single-celled organisms without a distinct nucleus or specialized organelles, including bacteria and archaea.