NURSING EXAM QUESTIONS
MICROBIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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to calm the virus
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To stimulate the bacterial cell
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To trap bacteria
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to release bacteria
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Detailed explanation-1: -Bacterial filters were an essential tool for securing a supply of uncontaminated water and for purifying products in industrial applications. This porcelain filter, developed in Pasteur’s laboratory, had tiny pores that allowed fluids to pass through while holding back bacteria and other microorganisms.
Detailed explanation-2: -Viruses were first discovered after the development of a porcelain filter-the Chamberland-Pasteur filter-that could remove all bacteria visible in the microscope from any liquid sample.
Detailed explanation-3: -At the beginning of this chapter, we described how porcelain Chamberland filters with pores small enough to allow viruses to pass through were used to discover TMV. Today, porcelain filters have been replaced with membrane filters and other devices used to isolate and identify viruses.