1. Introduction to Microbiology

In the SIM medium test, what reagent must be added to detect tryptophan hydrolysis (indole production) by bacteria?

Which of the following is NOT considered a symptom of infection?

What would most likely happen if a pathogen lost the ability to produce adhesins?

In a series of thioglycolate broth tubes, which tube would show growth of an obligate anaerobe?

Contamination of food items by other living organisms is known as:

All of the following are components in the chain of infection except:

Which two conditions are essential for effectively destroying microorganisms in an autoclave?

Which of the following antimicrobial agents primarily disrupts protein structure by denaturing proteins through oxidation of sulfhydryl groups?

Which of the following lists correctly identifies the three main techniques for identifying microbes?

Which of the following best describes the primary focus of microbiology?

Which of the following best explains how the condition of a host can influence the success of a pathogen in causing disease?

Which of the following foods is NOT a common source of food-borne pathogens?

Most sterilization is performed using a physical agent, such as heat. Which of the following is considered a physical agent for sterilization?

Which of the following is a common sign of cockroach infestation in a food establishment?

Which of the following best describes the cause of infection and a key structure involved in fighting infection in humans?