1. The condition in the host that results from pathogenic parasitic organism growing and multiplying within or on the host is called |
A. an infection. |
2. The final outcome of most host-parasite relationships depends on |
D. all of the choices |
3. Which of the following has no effect on the outcome of the host-parasite relationship? |
D. All of these have an effect on the outcome of the host-parasite relationship. |
4. Any organism that can cause disease in the host after direct interaction is a |
C. primary pathogen. |
7. If a symbiont either harms or lives at the expense of another organism, the relationship is called |
B. parasitism. |
8. An organism other than a human that is infected with a parasitic organism that can also infect humans is called a(n) ________ host. |
A. reservoir. |
9. Which of the following is required of a pathogen to possess in order for it to be successful at causing infectious disease? |
E. All of the choices. |
10. An inanimate object that may be contaminated with a pathogen is called a |
B. fomite. |
11. Which of the following is a facultative intracellular pathogen? |
B. Brucella abortus |
16. Vector-borne transmission can be either external or internal. In external (mechanical) transmission, the pathogen is carried |
B. on the body surface of a vector. |
18. Bacteria within biofilms exchange |
D. all of the choices |
34. Listeria monocytogenes propels itself through mammalian host cells using: |
B. host cell actin and other cytoskeletal proteins. |
35. The toxic component of lipopolysaccharide is called |
A. lipid A. |
36. The characteristics of a pathogen that determine its virulence include which of the following? |
D. all of the choices |
37. Pathogenicity islands are typically associated with |
A. genes encoding tRNA. |
38. Which of the following is not a biological effect associated with endotoxin? |
B. paralysis |
39. Endotoxin is released when |
A. gram negative pathogens lyse or divide. |
40. Which of the following is not a characteristic of lipid A? |
D. neurotoxic. |
41. Endotoxins include which of the following? |
B. lipopolysaccharide |
Micro Chapter 35
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