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Chapter 2

QuestionAnswer
Which of the following statements describes the field of microbiology before the development of the microscope? It was believed disease wasa caused by magic.
T/F: Medical microbiology involves identifying pathogens, but not identifying effective medical treatments. False
T/F: When naming bacteria, the genus name comes first, followed by the species name. True
Which of the following prefixes refers to a grouping of cocci bacteria in chain-like structures? Strepto-
A differential stain developed over 100 years ago in widespread use today is the ___________. Gram
The reason a culture and sensitivity test is performed is to: Identify the microorganism causing the illness and appropriate antibiotics for treatment.
During the _________ process, the microbial sample is usually spread in a specific pattern on the growth medium. Inoculation
T/F: The disk diffusion method is the only method available to determine microbial susceptibility. False
Harmful proteins secreted outside the cells by both gram-positive and gram-negative bacteria are called _________. Exotoxins
T/F: Antibiotics are chemical substances that kill bacteria and viruses. False
T/F: The “Golden Age of Microbiology” refers to the period of time in history when Leeuwenhoek created the microscope and discovered microbes. False
T/F: A health care-associated infection is an example of an opportunistic infection. True
Binary fission is a form of __________ reproduction. Asexual
Which of the following statements describes correct naming of bacterial cells? Genus name (capitalized in italics) and species name (lowercase in italics)
Which of the following bacterial cells are rod shaped? Bacilli
T/F: When performing a Gram stain, if the bacteria retain the purple color after the decolorizing rinse then they are identified as gram-positive bacteria. True
How long is the incubation period for a primary culture? 24-48 hours
The purpose of determining microbial susceptibility is to: Identify the most effective antibiotic to treat the infection.
Which of the following statements is true regarding the disk diffusion method of susceptibility testing? Antibiotic-containing paper disks are used to identify “zones of inhibition”.
T/F: A benefit of the broth dilution method of susceptibility testing is that the effective drug concentration or dosage can be identified. True
How are antibiotics classified? Bacteriostatic or bactericidal, Broad or narror spectrum, aerobic or anaerobic
Antibiotics that actively kill bacteria are referred to as _________. Bactericidal
Bacteria that do not need oxygen for survival are _________. Anaerobic
T/F: When treating an infection, it is better to use a broad-spectrum antibiotic to destroy as many microorganisms as possible. False
T/F: Antibiotic resistance can develop when bacterial enzymes attack the drug or prevent it from attaching to the bacteria. True
Created by: Epackin
 

 



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