MB C14 Quiz

tokia's version from 2017-04-13 01:13


MLab Quiz 14


Question Answer
1. Symbiosis is an association betweentwo or more species
2. Which of the following does not pertain to the commensal organism E. colisynthesizes blood clotting factors
3. All of the following pertain to microbial virulence excepticreases by attenuation
4. Which of the following statements about host-microbes is trueinfestation refers to the presence of larger parasites
5. The rapid transfer of a microbial pathogen through animals of a susceptible speciescan increase the intensity of the disease produced by that pathogen


Question Answer
6. Which of the following must be true in order to satisfy Koch's postulatescausative agent must be isolated from diseased host and grown in pure culture
7. All of the following are true of the relationship between microorganisms and diseases exceptviral infections invariably lead to nutritional deficiency
8. Which of the folowing statements about the relationship between hosts and microbes is truesome organisms can be pathogens and commensals
9. Which of the factors below is not considered to be an example of a virulence factorprodrome
10. Streptococcus pyogenes is a causative agent ofscarlet fever


Question Answer
11. A viral infection that involves continued and prolonged production of viruses in a host is referred to as a/anpersistent infection
12. Giardia intestinalis a protozoan produces the following virulence factoradhesive disc
13. What is a disease referred to when symptoms develop rapidly and it runs its course quicklyacute infection
14. An infection that is confined to a specific area of the bodylocal infection
15. Noncommunicable infectious diseasesare not spread from one host to another


Question Answer
16. Which of the following is not a stage of an infectious diseasesyndrome
17. The virus that causes chicken pox in childhoodis the causative agent of shingles
18. A symptomcan be observed or felt only by the patient
19. Attenuationis the process that weakens the disease-producing ability of a pathogen
20. A productive infectionoccurs when the virus enters the call and produces offspring
21. Leukocidindestroys or damages neutrophils
22. Toxoidis an altered toxin that retains its antigenicity

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