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Introduction to Microbiology quiz #1

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Termini in questo insieme (16)

  • What is a paramecium?

    A paramecium is a single-celled eukaryotic microorganism classified as a protozoan, commonly studied in microbiology.

  • What solidifying agent is used to prepare solid bacterial media?

    Agar is the solidifying agent commonly used to prepare solid bacterial media.

  • Who identified animalcules?

    Antony van Leeuwenhoek identified animalcules, which are microscopic organisms.

  • Where would you most likely find nitrogen-fixing bacteria?

    Nitrogen-fixing bacteria are commonly found in soil and in root nodules of certain plants.

  • What is an example of a liquid medium?

    Nutrient broth is an example of a liquid medium used to grow bacteria.

  • Which pathogen causes influenza?

    Influenza is caused by the influenza virus.

  • Which three elements are required to transmit infection in a healthcare setting?

    The three elements are a source of infection, a mode of transmission, and a susceptible host.

  • What is the sequencing of elements that allows infection to occur called?

    The sequencing of elements that allows infection to occur is called the chain of infection.

  • What must you do to keep bacteria from growing on temperature control for safety food (TCS)?

    Keep TCS food out of the temperature danger zone by proper refrigeration or heating.

  • What type of items cannot be effectively disinfected?

    Some porous items, such as sponges, cannot be effectively disinfected.

  • What is the easiest way to recognize foods contaminated with spoilage bacteria?

    Spoilage bacteria often cause changes in odor, color, or texture of food.

  • Where would a thermophilic microorganism be found?

    Thermophilic microorganisms are found in hot environments, such as hot springs.

  • What is the maximum time food can remain in the temperature danger zone?

    Food can remain in the temperature danger zone for a maximum of 4 hours.

  • How do scientists ensure that autoclaved materials were actually sterilized?

    Scientists use biological indicators or chemical indicators to confirm sterilization.

  • Which factor does not make the human body a favorable environment for many different microbes?

    Lack of nutrients does not make the human body favorable for microbes.

  • What is the process of sterilization?

    Sterilization is the process of killing or removing all microorganisms from a material.