Biology > EXAM > Microbiology Final Lecture Exam (Chapter 19) Updated/ All Answers Correct (All)

Microbiology Final Lecture Exam (Chapter 19) Updated/ All Answers Correct

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An epidemic disease is one that A. breaks out in explosive proportions in a population. B. remains dormant in populations. C. follows a primary infection. D. is transmitted solely by arthropods. ... (ANS- A. A scientist who studies the pattern of disease in a community and attempts to locate its source is called a(n) A. pathologist. B. epidemiologist. C. microbiologist. D. infectiologist. (ANS- B. What specific job is this person fulfilling? She isolates the cause of an outbreak, prevents its spread, and gets out public health messages to people who could have been exposed. A. Microbiologist B. Biologist C. Epidemiologist D. Public health inspector (ANS- C. The relationship between the body and its microbiota A. usually leads to parasitism B. is never beneficial to either. C. generally has a negative tone. D. is an example of a symbiosis. (ANS- D. Which of the following is considered a new emerging infectious disease? A. polio B. SARS C. smallpox D. cholera (ANS- B. Which of the following is an example of indigenous microbiota? A. Escherichia coli in the intestines B. Candida albicans in the intestines C. Lactobacillus in the human vagina D. All of the above are correct (ANS- D. Normal flora may be found in all the following environments except A. the blood. B. the pharynx. C. the vagina. D. the upper respiratory tract. (ANS- A. The virulence of an organism may be enhanced by all the following except A. its ability to produce exotoxins. B. its ability to overcome body defenses. C. its ability to spread through the tissues. D. its ability to grow on artificial laboratory media. (ANS- D. Certain microorganisms inhabit parts of the body without causing symptoms of disease. These organisms collectively are referred to as A. the microbiota B. symbiotes. C. the avirulent pathogens D. opportunists. (ANS- A. The degree to which an organism is able to cause disease is referred to as its A. chronicity. B. pathogenicity. C. acme. D. communicability. (ANS- B.. . Pathogenicity islands refer to A. pathogens in biofilm aggregations. B. clusters of genes responsible for virulence. C. areas of the body prone to infection. D. areas within a reservoir where pathogens can be found (ANS- B. An example of opportunistic organisms are those that A. cause typhoid fever. B. inhabit the intestine but are incapable of causing disease. C. inhabit the lungs and cause disease when body defenses are suppressed. D. require an intermediary host. (ANS- C. [Show More]

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