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Members of the Bacterial World quiz #4

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Terms in this set (16)

  • What structure protects bacteria from being phagocytized?

    The capsule (glycocalyx) protects bacteria from phagocytosis.

  • Domain of unicellular prokaryotes that have cell walls containing peptidoglycan:

    Bacteria.

  • Peritrichous bacteria make a run when:

    All flagella rotate in the same direction, propelling the cell forward.

  • Appendages that propel bacterial cells through an aqueous environment include axial filaments and:

    Flagella.

  • What situation most likely promotes bacterial contamination?

    Improper food handling and storage promote bacterial contamination.

  • Pus-forming bacterial cells that form in long chains and cause blood poisoning are called:

    Streptococci.

  • Hair-like projections used by bacilli and spirilla to move themselves are called:

    Flagella (bacteria do not have cilia).

  • Which bacteria are known to cause spoilage of food?

    Bacteria such as Pseudomonas and Lactobacillus can cause food spoilage.

  • Pathogenic bacteria may produce:

    Toxins, enzymes, and other virulence factors.

  • Gastrointestinal (GI) bacteria in the body:

    Aid in digestion and protect against pathogens.

  • Staph bacteria are responsible for:

    Skin infections, food poisoning, and toxic shock syndrome.

  • The term aerotolerant anaerobe refers to an organism that:

    Does not use oxygen but can tolerate its presence.

  • What is a common and serious foodborne pathogen?

    Salmonella is a common and serious foodborne pathogen.

  • Which is a small bacterium that lives in lice, fleas, ticks, and mites?

    Rickettsia species.

  • What are the typical growth patterns and bacterial type of S. aureus?

    S. aureus grows in irregular clusters of spherical cells.

  • What are the properties of salmonellae?

    Salmonellae are gram-negative, rod-shaped, and can cause foodborne illness.