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Introduction to Microbiology quiz #8

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Terms in this set (10)

  • In a hypertonic solution a bacterial cell will typically

    A bacterial cell will lose water and shrink (plasmolysis) in a hypertonic solution.

  • What is an indirect method for estimating the number of microbes in a sample?

    Turbidity measurement is an indirect method.

  • How does the pattern of microbial death occur when exposed to lethal agents?

    Microbial death occurs at a constant rate when exposed to lethal agents.

  • Which group of microorganisms is most likely to spoil a freshwater trout preserved with salt?

    Halophilic bacteria are most likely to spoil salted trout.

  • Elist three main techniques for identifying microbes.

    Phenotypic, genotypic, and immunologic methods.

  • Selective toxicity refers to damage to

    Selective toxicity refers to damage to microbes but not host cells.

  • The science that deals with when diseases occur and how they are transmitted is called

    It is called epidemiology.

  • Which microbes are used for wastewater treatment?

    Bacteria and protozoa are used in wastewater treatment.

  • What group is entirely unicellular?

    Bacteria are entirely unicellular.

  • A pathogen is best described as

    A pathogen is a microbe that causes disease.