Chapter 1: A Brief History of Microbiology

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What is a probiotic? a. A microorganism purposefully taken to protect from disease b. Another term to describe a pathogen c. Another term for vaccine d. Another word for chemotherapy

a. A microorganism purposefully taken to protect from disease

What is the value of vaccination? a. It confers a long-lasting protective immune response b. It protects from smallpox c. It weakens a pathogen d. It activates a pathogen

a. It confers a long-lasting protective immune response

Why is Saccharomyces cerevisiae important scientifically? a. It is the most studied eukaryotic cell b. It causes yeast infections in females c. It is a mold that produces an antibiotic d. It is used in the production of alcoholic beverages and leavened bread

a. It is the most studied eukaryotic cell

Which of the following is a step in Koch's postulates that cannot always be performed? a. When the agent is introduced to a healthy, susceptible host, the host must acquire the disease b. The suspected causative agent must be found in every case of the disease c. The agent must be isolated and grown outside the host d. The agent must be absent from healthy hosts

a. When the agent is introduced to a healthy, susceptible host, the host must acquire the disease

Which of the following types of microbial cells are least similar to animal cells in terms of their structure and nutrition? a. Fungi b. Bacteria c. Algae d. Protozoa

b. Bacteria

Robert Koch and his colleagues are remembered for all of the following achievements except the __________. a. First photomicrograph of bacteria b. discovery of the "magic bullet" c. simple staining technique d. use of steam to sterilize growth media

b. Discovery of the "magic bullet"

If your hypothesis is that fermentation occurs spontaneously, which of the following results would support your hypothesis? a. Fermentation occurs in boiled grape juice after yeasts are added b. Fermentation occurs in a sealed flask of boiled grape juice c. Fermentation occurs in boiled grape juice after bacteria are added d. Fermentation does not occur in a sealed flask of boiled grape juice

b. Fermentation occurs in a sealed flask of boiled grape juice

Which of the following would not be classified as a eukaryote? a. Algae b. Fungi c. Archaea d. Protozoan

c. Archaea

The first scientist to pose the theory of spontaneous generation of microbes was __________. a. Needham b. Spallanzani c. Aristotle d. Redi

c. Aristotle

Which of the following scientists was not important during the Golden Age of Microbiology? a. Pasteur b. Bucnher c. Woese d. Koch

c. Woese

What is a facultative anaerobic organism? a. An organism acquring oxygen for its growth b. An organism that will die in the presence of oxygen c. An organism requiring a trace amount of oxygen for survival d. An organism that can survive in the presence or absence of oxygen

d. An organism that can survive in the presence or absence of oxygen

Which of the following is not a disease targeted for eradication? a. Malaria b. AIDS c. Tuberculosis d. Chicken pox

d. Chicken pox

Identifying the causative agent of cat scratch disease was an advance in __________. a. Microbial genetics b. recombinant DNA technology c. Gene therapy d. Molecular biology

d. Molecular biology


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