15) Which statement below is correct? a) Epidemiology rarely has to contend with

Question

15) Which statement below is correct? a) Epidemiology rarely has to contend with error when studying disease. b) Most bacteria on earth cause human disease. c) Prokaryotic cells are larger than eukaryotic cells. d) Antibiotics are not as effective at treating bacterial disease as they once were because some strains of bacteria have evolved to resist the action of antibiotics. 16) The bacteria indicated by the letter A in the illustration are a) Streptococci b)Spirochete c) Staphlococci d) Bacillus 17) Which of the following is a function of the skin? a) Moving blood and fluid through the regions of the body b) Vitamin D production c) fever d) inflammation 18) Which of the following is a way bacteria become resistant to antibiotics? a) Bacteria incorporate the antibiotic into the cell wall. b) Bacteria use the antibiotic as an energy source. c) Bacterium produces enzymes that destroy the antibiotic d) Bacterial flagella allow bacteria to escape the antibiotic. 19) Which of the following cells is stimulated by UV radiation? a) adipose cell b) Meissner cell c) keratinocyte d) melanocyte 21) Europeans were assisted in their conquest of the Americas by a) the European paradigm b) the introduction of diseases to native populations c) cohort studies d) the scientific method 22) The United Nations works to vaccinate children in developing nations through a) Epidemiology b) The Center for World Vaccination c) The Center for Disease Control and Prevention d) The World Health Organization 23) The major difference between prokaryotes and eukaryotes is a) prokaryotes have organelles and a nucleus while eukaryotes do not. b) prokaryotes have unique mitochondria. c) eukaryotes have organelles and a nucleus while prokaryotes do not. d) prokaryotes, but not eukarvotes, can perform photosynthesis. 24) Which of the following is a description of bacterial shape? a) chains of spheres b) twisted spheres c) chains oftwisted rods d) cones 25) Which of the following is a mode of action of antibiotics? a) Prevention of bacterial invasion b) Formation of a cell wall c) Destruction of essential viral metabolic pathways d) Blockage of DNA and RNA synthesis in bacteria 26) The Spanish flu is considered to have been a since it traveled the globe. a) pandemic b) epidemic c) quarantine d) degenerative disease 27) Which of the following is an example of a virus? a) Athlete?s foot b) Influenza c) Mad cow disease d) Yeast infection 28) What is the only virus thus far successfully eradicated from the human population? a) pneumonia b) herpes e) smallpox d) polio 20) Which is the most common form of skin cancer? a) melanomas b) basal cell carcinoma c) squamous cell carcinoma d) cuboidal cell carcinoma 29) Viruses need a ____________ a) host cefl b) source of protein c) bloodbath d) path to blood vessels

Explanation / Answer

15. d

16. a

17. c

18. d

19. b

20. c

21. c

22. b

23. a

24. b

25.a

26. d

27. d

28. b

29. a

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