1. Introduction to Microbiology

In an introductory microbiology lab, if the only test that turned out positive was for catalase activity, which of the following organisms was most likely present?

Which of the following statements about antibiotic usage and the development of antibiotic resistance is true?

Who developed the culture plate method to identify pathogens?

Dry oven sterilization is not useful for plastics, cotton, and which of the following materials?

Which of the following infections are considered healthcare-associated infections (HAIs)?

Which of the following sources is most appropriate for a person to learn accurate and up-to-date information about human immunodeficiency virus (HIV)?

Cytopathic effects are changes in host cells due to:

Which of the following best explains why ethanol and other alcohols are effective in microbial control?

How did the earliest single-celled microorganisms most likely produce energy to drive their metabolic processes?

Which key feature of Bacillus anthracis makes anthrax disease particularly difficult to eradicate?

In a microbiology experiment, why is one sterile broth inoculated with Escherichia coli while another sterile broth is left uninoculated?

The length of a viral multiplication cycle is usually measured in which of the following units?

Which type of lesion is characterized by piles of material on the skin surface?

Which of the following best describes the primary purpose of using a Gram stain in a microbiology laboratory?

Which of the following is the substance referred to as endotoxin?