Exam 3 Controlling Microbial Growth in the Environment

What is the main reason for controlling microbial growth in the environment?

• To increase disease spread

• To prevent spread and disease

• To promote microbial growth

• To contaminate fomites

Inanimate items (e.g. doorknobs, toys etc.) that when exposed to microbes aid in disease transmission are called _______.

• fomites

• vectors

• antibodies

• pathogens

Which of the following is an example of a fomite?

• Doorknob

• Air

• Water

• Sunlight

According to the chart on Pathogen Sensitivity and Microbial Control Methods, which type of pathogen is the most resistant to microbial control methods?

• Prions

• Gram-positive bacteria

• Enveloped viruses

• Fungi

According to the chart on Pathogen Sensitivity and Microbial Control Methods, which type of pathogen is the most susceptible to microbial control methods?

• Enveloped viruses

• Bacterial endospores

• Non-enveloped viruses

• Fungi

Based on the Pathogen Sensitivity chart, which of the following is more resistant to microbial control methods?

• Gram-positive bacteria

• Mycobacteria

• Enveloped viruses

• Fungi

According to the Pathogen Sensitivity chart, place the following in order from most resistant to most susceptible: Fungi, Bacterial endospores, Gram-negative bacteria.

• Bacterial endospores, Gram-negative bacteria, Fungi

• Fungi, Gram-negative bacteria, Bacterial endospores

• Gram-negative bacteria, Fungi, Bacterial endospores

• Fungi, Bacterial endospores, Gram-negative bacteria

According to the Pathogen Sensitivity chart, nonenveloped viruses are more resistant to microbial control methods than gram-positive bacteria.

• True

• False

According to the Pathogen Sensitivity chart, which comes immediately after 'Cysts of protozoa' in terms of resistance?

• Active-stage protozoa (trophozoites)

• Bacterial spores

• Fungi

• Viruses

According to the Pathogen Sensitivity chart, which of the following is least resistant to microbial control methods?

• Prions

• Enveloped viruses

• Mycobacteria

• Fungi