Exam 1: Microorganisms and Microbiology

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________described the first virus and the basic principles of virology.

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The discovery of antibiotics and other important chemicals led to the field of

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Treponema pallidum, a bacterium associated with syphilis, is not considered a pathogen because to date it remains unculturable in the lab, and, therefore, Koch's postulates are unable to be fulfilled.

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The environment in which a microbial population lives is its habitat.

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How would the presence of endospores in Louis Pasteur's nutrient solutions have affected his conclusions about spontaneous generation?

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Louis Pasteur's most famous success was his work on

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Which of the following is/are characteristic of cellular organisms?

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The structure that confers structural strength on the cell is known as the

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Fannie Hesse is credited with giving ________the idea to use agar as a solidifying agent.

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Microbial ecology is the study of

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Developments in the fields of immunology and medical microbiology were practical extensions of the work of

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Explain the nature and function of an enrichment culture.

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________was the first to describe microorganisms, while ________was the first person to see bacteria.

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Bioremediation _________ by introducing pollutant- consuming microorganisms or specific nutrients that help microorganisms degrade pollutants.

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Using specific examples, explain why it is sometimes impossible to satisfy Robert Koch's postulates.

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Microbes were first formally observed during the mid- 1600s, but the cell theory was not enunciated until 1839. Write a brief essay explaining why microbiology did not become a formally recognized science until Louis Pasteur's and Robert Koch's time.

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Explain why infectious diseases are much less lethal in developed countries than in underdeveloped countries.

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Which statement is TRUE?

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Explain why only anaerobic bacteria inhabited Earth for the first two billion years of its existence.

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Robert Koch's greatest accomplishment in the field of medical bacteriology was with

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